LESSON PLAN
(RPP)
School :
Subject: Chemistry
Class / Semester: X PMS / Odd
Basic Material: Elements Periodic System
Time Allocation: 6 x 45 minutes (2 meetings)
A.
Core Competence (KI)
KI 1 : Living and
practicing the religious teachings it embraces
KI 2 : Living and practicing honest, disciplined,
responsible, caring (polite, cooperative, tolerant, peaceful) behavior,
courteous, responsive and proactive and showing attitude as part of the
solution to problems in interacting effectively with the social environment and
Nature and in placing ourselves as a reflection of the nation in the
association of the world
KI 3 : Understanding, applying, analyzing
factual, conceptual, procedural knowledge based on curiosity about science,
technology, art, culture and humanities with humanitarian, national, state, and
civilization insights on the causes of phenomena and events, and applying
procedural knowledge In a specific field of study according to his or her
talents and interests to solve the problem
KI 4 : Processing, reasoning, and recruiting in
the realm of concrete and abstract realms related to the development of
self-study in schools independently, and capable of using methods according to
scientific rules
B.
Basic Competencies and Indicators
1.1
Recognizing
the regularity of the structure of matter particles as a manifestation of the
greatness of God YME and the knowledge of the structure of matter particles as
the result of human creative thinking whose truth is tentative
1.2
Shows
scientific behavior (curiosity, discipline, honest, objective, open, capable of
distinguishing facts and opinions, resilient, conscientious, responsible,
critical, creative, innovative, democratic, communicative) in designing and
experimenting and discussing the realized In everyday attitude
1.3
Analyze
the relationship between electron configuration and orbital diagrams to
determine the location of elements in the periodic table and the periodic
properties of the elements
Indicator:
Meeting
1
· Compare the development of the periodic system through literature
study
· Determine periods and classes of elements in the periodic table
· Associate the electron configuration of an element with its
location in the periodic system
Meeting 2
· Classify elements into metals, non-metals, and metalloids
· Shows the relative atomic mass of the periodic table
· Determine the relationship between the atomic number with the
nature of the elementality (atomic radius, ionization energy, electron
affinity, and electronegativity)
· Comparing the magnitudes of atomic radii, ionization, electron
affinity, and electroneggency elements of one another with their atomic number
or their location in the SPU
1.4
Presents
the results of the analysis of electron configuration relationships and orbital
diagrams to determine the location of elements in the periodic table and the
periodic properties of the elements
Indicator:
Meeting
1
· Presenting concept maps on the progress of the periodic table
· Determine periods and classes of elements in the periodic table
· Associate the electron configuration of an element with its
location in the periodic system
Meeting 2
· Classify elements into metals, non-metals, and metalloids
· Shows the relative atomic mass of the periodic table
· Analyze the tables or graphs of the periodic nature of the elements
C.
Learning Objectives
Meeting
1
1.
After
doing literature study, learners are able to know the advantages and
disadvantages of the development of periodic systems ranging from Dobereiner to
Meyer
2.
After
understanding the modern periodic system, learners are able to distinguish periods
and classes
3.
Through
analysis of electron-element configurations, learners are able to relate
periods and classes of elements in the periodic table
Meeting 2
4.
After
understanding the nature of keperiodikan, learners are able to classify the
elements into metals, non metals and metalloid
5.
Learners
can understand the determination of the relative atomic mass based on the
abundance of elements in nature and based on the comparison to the mass of C-12
atoms
6.
Learners
are able to explain the graph of the nature keperiodikan elements
D.
Learning Materials
1.
Material facts
· The presence of Element in nature
· Elite Periodic System
· Elemental Properties
2.
Material concept
· atomic number and mass number
3.
Material principles
· Azas Aufbau
· und rules
· Pauli ban
4.
Procedural Material
· Electron configuration
E.
Model and Method of Learning
a.
Approach:
Scientific Approach
b.
Learning
Model: Discovery Learning (Inquiry)
c.
Learning
Methods: Discussion, Questioning, Assignment and percentage
F.
Media, Tools, and Learning Resources
1.
Media & Learning Resources:
· Periodic table of elements (Dobereiner to Meyer)
2.
Tools / Materials:
· In Focus
· Laptop
· Whiteboards and Markers
3.
Learning Resources:
· Teacher handbook
· Student handbook
G.
Learning Activities:
Meeting
1
No
|
Activity
|
Description
|
Time Allocation
|
1
|
Introduction
|
·
Greetings
·
Checking for student
attendance
·
Conditioning students
to learn the material "Development of Elective Periodic System and
Determination of Period and Element Class"
·
Frequently asked
questions about element names
Example: "Please
name 5 elements in nature that you know?"
·
Delivering learning
objectives Memberi salam
|
10
minutes
|
2
|
Core
|
·
Students are divided
into 5 groups
·
Students listen to the
table of the periodic system of elements based on: Dobereiner, Newlands,
Mendelev and Meyer
·
In groups students are
guided to:
§ Observe the differences of the four periodic
tables of the elements shown
§ Questioning the basis of the preparation of the
four periodic systems of the element
§ Find and collect basic information on grouping
of elements based on the development of the periodic system
§ Summarizing the basis of grouping of the
elements undertaken by Dobereiner, Newlands, Mendelev and Meyer
·
Students listen to the
periodic system of modern elements that teachers display
·
In groups, students
are guided to:
§ Observing the arrangement of elements in the
modern SPU
§ Asking for differences in periods and classes
§ Asking the condition of grouping of elements
into one group and one period
§ Find and collect information on the grouping
requirements of elements into groups and periods based on electron
configurations
§ Summarizes the relationship between electron
configuration with group and element period
·
Group representatives
present their findings in front of the classroom and be reinforced by the
teacher
·
Students do the
exercises on the determination of group and element period of 5 questions
|
110
minutes
|
3
|
Cover
|
·
Teachers assign
assignments to students to do at home
·
Students draw
conclusions on learning outcomes at the first meeting
·
Teachers reflect on
activities that have been implemented
·
Teacher submits a
lesson plan plan to be delivered at the next meeting
|
15
minutes
|
Meeting
2
No
|
Activity
|
Description
|
Time Allocation
|
1
|
Introduction
|
·
Greeting
·
Checking for student
attendance
·
Condition students to
learn the material "Physical properties of elements and periodicity of
elements"
·
Questions about metal
samples and properties
Example:
"What does one
type of metal look like?"
"Mention 2 pieces
of metal you know?"
"What are two
types of nonmetallic elements you know?"
"What two
non-metallic features do you know?"
·
Delivering learning
objectives
|
15
minutes
|
2
|
Core
|
·
Teachers divide
students into 5 groups
·
In groups, students
are guided to:
§ Observe the physical properties of metals and
nonmetals
§ Questioning criteria of elements classified into
metals and non-metals
§ Search and collect information on metallic and
non-metallic chemical properties
§ Categorize examples of non-metallic or
non-metallic elements (metalloid)
§ Summarizes the elements of metal, nonmetallic
and metalloid elements
§ Delivering the findings in front of the class,
representative
·
Students listened to
the symbols of several Cl isotopes displayed by teachers (Cl - 35 and Cl -
37)
·
In groups, students are
guided to:
§ Observing the isotope mass of Cl and the mass of
Cl elements listed on the SPU
§ Questioning how to determine the mass of Cl
elements listed in the SPU
§ Finding and collecting information on
determining the relative atomic mass of elements
§ Summarizes the method of determining the
relative atomic mass of elements
§ Delivering the findings in front of the class by
group representative
·
Students are given
graph of periodicity of elements
·
Students are mentored
to:
§ Observing the graph of the periodicity of the
elements
§ Questioning the nature of the characteristic
properties of the elements
§ Seek and collect information on the definition
of the nature of the periodic properties
§ Understand how to interpret the graph of the
periodicity of the elements
§ Summarizes the trends of characteristic
properties of elements
§ Convey the findings in front of the class
|
105
minutes
|
3
|
Cover
|
·
Teachers assign
assignments to students
·
Students draw
conclusions on learning outcomes at the first meeting
·
Teachers reflect on activities
that have been implemented
·
Teacher submits a
lesson plan plan to be delivered at the next meeting
|
15 minutes
|
H. Assessment
1. Form of Instruments and Types / Assessment Techniques:
a. Form of Instrument in the form of Test:
No
|
Indicators of Competence Achievement
|
Assessment Technique
|
Instrument's Shape
|
Instrument
|
1.
|
Compare the
development of the periodic system through literature study
|
Written test
|
Description
|
Attached
|
2.
|
Define
periods and classes of elements in the periodic table
|
Written test
|
Description
|
Attached
|
3.
|
Associate the electron
configuration of an element with its location in the periodic system
|
Written test
|
Description
|
Attached
|
4.
|
After
understanding the nature of keperiodikan, learners are able to classify the
elements into metals, non-metals and metaloid
|
Written test
|
Description
|
Attached
|
5
|
Learners
can understand the determination of the relative atomic mass based on the
abundance of elements in nature and based on the comparison to the mass of
C-12 atoms
|
Tes Tertulis
|
Description
|
Attached
|
6
|
Learners
are able to explain the graph of the nature of the period keperiodikan
|
Written test
|
Description
|
Attached
|
b.
Form of Non-Test Instruments:
·
Rubric and Stage Assessment
Guidelines
No
|
Name Learners
|
Aspects of Attitude Assessed
|
NP
|
NM
|
NA
|
Ket
|
||
Want to know
|
Cooperation
|
Communication
|
||||||
1
|
(NP/NM)x100
|
|||||||
2
|
||||||||
3
|
Description of attitude assessment
Want
To Know (curiosity)
5 = never show attitude do not
want to know
4 = never show attitude do not want to know
3 = several times show attitude do not want to know
2= often show attitude do not want to know
1 = very often show attitude do not
want to know
|
Cooperation
(team work)
5 = always cooperate
4 = often cooperate
3 = several times to cooperate
2 = never cooperate
1 = never cooperate
|
Communicating
Good (communicative)
5 = never shows non-communicative attitude
4 = never show non-communicative attitude
3 = several times show non-communicative attitude
2 = often does not show a non-communicative attitude
1 = very
often shows non-communicative attitude
|
No
|
Indicators
of Competence Achievement
|
Instrument
|
Answer
key
|
Score
|
Rubric
|
1.
|
Compare the development of the periodic system through literature study
|
Explain the different elements of element classification by Dobereiner,
Newlands, Mendelev and Meyer?
|
·
Dobereiner classifies elements based on the increase of
mass numbers, which per group consists of 3 elements and the mass of the
second element is the average mass of elements 1 and 3
·
Newlands classifies elements according to an increase in
element mass number, where the 8th element is placed under the first element
because it has similar properties
·
Mendelev classifies elements based on the increase in
elemental mass and similarity in elemental properties. The advantage, he
dared to empty a few places in the table because it believes there are other
elements that at that time have not been found but the character has been
predicted
·
Newlands classifies elements based on the increase of
atomic number and similarity of elemental properties
|
20
|
·
Students are able to explain 4 principle of
classification, score = 20
·
Students are able to explain 3 principle of
classification, score = 15
·
Students are able to explain 2 principle of
classification, score = 10
·
Students are able to explain 1 principle of
classification, score = 5
·
Students are unable to explain any single
classification principle, score = 0
|
2.
|
Associate the electron configuration of an element with its location in
the periodic system
|
Write down the configuration of the following
elements, and explain how to determine their location in the periodic system
of elements:
a. 16S
b. 27Co
|
a. 16S : 2 . 8 . 6
Or
16S : 1s2 2s2 2p6
3s2 3p6
b. 27Co : 2 . 8. 15 . 2
Or
27Co : [Ar] 4s2 3d7
·
The period of the element is determined from the number of
electron occupied shells or the largest quantum number of the major
·
The class is represented by the valence electron element (the
electrons residing in the outer shell). If the element configuration stops in
the skin sub s or p, then the element is in the main group (A). Whereas if
the element configuration stops at the d sub sub, then the element is a
transitional group (B)
|
10
|
·
4 correct answers, score = 10
·
3 correct answers, score = 7.5
·
2 correct answers, score = 5
·
1 correct answer, score = 2.5
|
3.
|
Define periods and classes of elements in the periodic table
|
Note the following X-element configuration and locate it in the periodic
system of elements
X : [Ar] 4s2 3d10 4p3
|
The element X is in period 4 and the VA class
|
4
|
·
Period and class true, score 4
·
One wrong, score 2
·
Both are wrong, score
|
4
|
After understanding the nature of keperiodikan, learners are able to
classify the elements into metals, non-metals and metaloid
|
Group the following elements into metals, nonmetals and
metalloids:
N, K, Mg, Si, Cl, Ne, Fe, As, Cr, Kr
|
Metals: K, Mg, Fe, Cr
Nonmetal: N, Cl, Ne, Kr
Metalloid: Si, As
|
10
|
Each one answer is correct, score 1
|
5.
|
Learners can understand the determination of the relative atomic mass
based on the abundance of elements in nature and based on the comparison to
the mass of C-12 atoms
|
If known isotope Cl-35 (abundance 75%) and
isotope Cl-37 (abundance 25%). Find the relative average mass of ordinary
elements of Cl
|
Ar Cl = (isotope mass Cl-35 x abundance) + (isotope mass
Cl-37 x abundance)
Ar Cl = (35 x 0.75) + (37 x 0.25)
Ar Cl = 35.5
|
6
|
Each step of the answer, score 2
|
6.
|
Learners are able to explain the graph of the nature of the period
keperiodikan
|
Explain why in one class from top to bottom, the radius of the atom has
a greater tendency?
|
The elements that are in one class from top to bottom, the number of
skin increases which means the distance from the nucleus to the outermost
skin becomes farther away and causes the radius of the element to increase
|
4
|
Keywords:
·
The number of skins increases (2)
·
The distance from the nucleus to the outer
shell is increased (2)
|
How can you explain about The electron configuration of an element with its location in the periodic system?
BalasHapusIn explaining it I use some media among his video media that will help the child visualize the location of an element in the periodic table, I also use the periodic table so the child knows exactly where an element lies. With some of my book sources helping kids find out quickly
HapusIn the "Elements Periodic System" lesson, your RPP applies Learning Methods: Discussion, Questioning, Assignment and percentage. What is the% assessment of the lesson?
BalasHapusDiscussion, Question and Answer, Tasks, in which I have my own appraisal based on the percentage for the discussion used as the value of the group consisting of papers and power points percentage 30%, for 20% percentage questioning and for the 10% percentage assignment, the remaining percentage for Uas
HapusWhat if one of the core competences is not done? What are the consequences and how to solve them?
BalasHapusCore competence is the translation or operationalization of SKL in the form of qualities that must be owned by those who have completed education in a particular educational unit or a certain level of education, a description of the main competencies grouped into attitude, knowledge, and skills (affective, cognitive and psychomotor aspects) Which learners should learn for a level of school, class and subject. Core competence should reflect a balanced quality between hard skills and soft skills achievement. Core competence is designed in four interrelated groups that are related to religious attitudes (core competency 1), social attitudes (competence 2), knowledge (core competency 3), and application of knowledge (competence 4). These four groups become the reference of Basic Competence And should be developed in every learning event in an integrative manner. Competence related to religious and social attitudes is developed indirectly when learners learn about knowledge (group competence 3) and knowledge application (core competence group 4). If one of the core competencies is not done it will affect the development that should be obtained after studying this material, when entering the next material then the students will have difficulty in developing the core competencies that should have had, for example when the competence of application of knowledge is not done then the students will be difficult if doing Material matters concerning the application
HapusHow to compare the atomic quantities of radii, ionization, electron affinity, and electroneggency elements with each other by atomic number or its location in SPU?
BalasHapusWe can compare the amount of ionisation energy, electron affinity and electronegativity by knowing what is the ionization energy, the electron affinity and the eloctronegative. We must also know the properties and the location of the atoms in the periodic table
Hapus1. ionisation energy
If the number of electrons is small, the pull force of electrons with the nucleus is smaller (the fingers are large). As a result, the energy to release the relatively small outer electrons means a small ionisation energy. Elemental elements: the ionization energies are progressing downward, because the outer electrons are far from the nucleus (the nucleus pull force is weaker), so that the outer electrons are more easily removed. The following elements are: ionisai energies are generally increasingly to the right increasingly larger, as the right tensile strength is stronger. Exceptions: Group II elements have larger ionisation energies than class III A, and group ionization energies VA is bigger than in Group VI A
2. electron affinity
In one period from left to right, the radius of small semkain dangaya pull core to the greater electrons, the atoms more easily attract the electrons from the outside so that the affinity of electrons getting bigger. In one group from top to bottom, the radius of the atom is getting bigger, so the tensile force of the nucleus is smaller, the atom is getting harder to pull the electron from the outside, so the electron affinity is getting smaller
3. Keelektronegatifan
Electronegativity is the ability of an atom to attract electrons from other atoms. The factor that affects electronegativity is the pull of the nucleus to the electrons and the radius of the atom. Elements of a group: the electronegativity is getting smaller and smaller, as the tug-pulling force of the nucleus is weaker. The lower elements in the periodic system tend to release electrons. Elements such as: electronegativity increasingly greater right. Largest electronegativity at each period is owned by class VII A (halogen elements). The greatest price of electronegativity is found in flour (F) of 4.0, and the smallest price is in franium (Fr) ie 0.7
Give examples on Classification of elements into metals, nonmetals, and metaloids?
BalasHapus1. metal elements
HapusMetals are elements that have shiny properties and are generally good conductor of electricity and heat conductor
Example: aluminum, barium, iron, gold, manganese, nickel etc.
2. Non Metal Elements
The non-metallic element is an element which has no metallic properties. In general, non-metallic elements are gaseous and solid at normal temperature and pressure. Examples of non-metallic elements in the form of gases are oxygen, nitrogen, and helium. Examples of non-metallic elements in solid form are sulfur, carbon, phosphorus, and iodine. Non-metallic solids are usually hard and brittle. Non-metallic element in the form of liquid is bromine
3. metaloid
Metaloid is an element that has metallic and nonmetal properties. Semilogam element is usually semiconductor.
Example: boron, silicon, germanium, arsen etc
Explain about Azas Aufbau, Und rules and Pauli Ban
BalasHapus1. aufbau principle
HapusThe aufbau principle states that electron filling starts from the lowest energy level to a higher energy level. The state when electrons fill the skin with the lowest energy is called the ground state (ground state)
2. hund rules
Frederick Hund, 1927 (known as Hund) states that electrons filling subshells with more than one orbitals will be dispersed in equal-energy orbitals with the same spin direction. This principle is based on the reasoning that the repulsive energy between two electrons will be minimum if the distance between far apart electrons
3. The Pauli Prohibition Principle
Pauli put forward his hypothesis which states that in one atom it is not possible two electrons have the same four quantum numbers. For example, 2 electrons will occupy 1s subshell. The first three quantum numbers will have the same value (n = 1, l = 0, m = 0). For that the last quantum number, the spin quantum number (s) must have a different value (+1 / 2 or -1/2). In other words, each maximal orbitals can only be filled with 2 electrons with opposite spin direction
How to improve the students' willingness to learn especially in chemistry because chemistry is one of the lessons that students do not like?
BalasHapusSteps we can take to improve students' interest in chemistry:
Hapus1. by using the media (props) in the form of the Periodic Element System and the posters about the periodic properties
2. explain the material in sequence
3. Provide a test and return the results and discuss the difficult ones
4. using game media in chemical learning
5. choose an interesting learning media so that students do not get bored learning and more easily remember the chemical formulas
why you just used one of Media & Learning Resources?
BalasHapusBecause in this material the media needed only the periodic table, the source of learning that I use is the teacher handbook that is all the books needed by the teacher to provide the material widely to the students as well as the student handbook as other literature that helps students re-understand the material of the periodic system elements This is so that they do not depend only on what the teacher gives. If other materials needed media and other sources then the teacher will definitely use the media and the source
Hapus