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A Semi-Detailed Lesson Plan

In Grade 9 Science

Reproduced by: Violanda Kenichi Cheva

Content Standard : The learners demonstrate understanding of The development of atomic models the led to the description of behavior of electrons within atoms

Performance Standard : The learner should be able to Describe how the Bohr’s model of the atom improved Rutherford’s atomic model and Explain how the Quantum Mechanical Model of the atom describe the energies and positions of the atom electrons

Quarter: First Week: Second

Day: 31

Developmental Lesson Plan

LEARNING OBJECTIVES

LEARNING ASSESSMENT

LEARNING CONTENT

LEARNING PROCEDURE ASSIGNMENT

Through lecture and discussion, the students should be able to:

A. analyze the picture of Bohr’s atomic model;

B. differentiate Bohr’s model and Rutherford’s model;

The students will analyze or give their opinions about the picture of Bohr’s atomic model

Ask the students;What are the difference between Bohr’s model and Rutherford’s model

A. Subject Matter

Electronic Structure of Matter

B. Reference: Science Learner’s Modul

C. MaterialsChalkMMPCartonila

D. ConceptNiels Bohr refined Rutherford’s model of an atom. based his experiments, Bohr described the electron to be moving in definite orbits around the

A. Preparation 1. Ask the student to pick up

the litters2. Set up multimedia

projector3. Checking of attendance

B. Presentation

1. Ask the students:1.1 What is atom?1.2 Did you remember

Rutherford’s atomic model?

2. Discuss difference between Bohr’s model and Rutherford’s model

worksheet

C. describe quantum mechanical model of atom.

The students give their opinions about quantum mechanical model of atom.

nucleus.

E. SkillsDescribes how the differences Rutherford’s atomic model and Bohr’s atomic model

F. ValuesCoorperating in the discussion

3. Demonstrate the picture of Rutherford’s atomic model and Bohr’s atomic model

4. Ask the students;What are the difference between Bohr’s model

and Rutherford’s model

5. Ask the students the following;5.1 What is the difference

between Rutherford’s atomic model and Bohr’s atomic model

6. Discuss quantum mechanical model

7. Ask the students the following;7.1 What is the basis for

the quantum mechanical model of the atom

C. GeneralizationExplain the electronic structure of matter

D. Application1. Using the picture, the

students can difference Rutherford’s atomic model and Bohr’s atomic model


In Grade 9 Science





Day: 31


LEARNING OBJECTIVES

LEARNING ASSESSMENT

LEARNING CONTENT

LEARNING PROCEDURE ASSIGNMENT


A. determine the characteristic colors that metal salts emit;

B. relate the colors emitted by metal salts to the structure of the atom

C. relate the flame test with Bohr’s atomic model

The students will determine the difference colors

Ask the students;Why do you think are there different colors emitted?

Ask the students;How does Bohr’s model of an atom explain the characteristic of orbit?

A. Subject Matter

Flame test


C. MaterialsChalkMMP

D. ConceptA glass prism separates the light given off into its component wavelength. The spektrum produced appears as a series of sharp bright lines with characteristic colors and wavelength on a dark background instead of being

1. Preparation 2. Ask the student to

pick up the litters3. Set up multimedia

projector4. Checking of

atendance

Presentation1. Ask the students:

1.1 Did you remember Bohr’s atomic model?

1.2 What is flame test?

2. Discuss about the flame test

worksheet

continuos like the rainbow. We call this series of lines the atomic spectrum of the element.

E. SkillsDescribes does Bohr’s model of an atom explain the characteristic of orbit


3. Ask the students the following;3.1 what is emission

spectrum of chemical element?

3.2 What is atomic spectrum of the element?

3.3 Why do you think are there different colors emitted?

3.4 What particles in the heated compound are responsible for the production of the colored light?

3.5 How does Bohr’s model of an atom explain the characteristic of orbit?

D. GeneralizationExplain the relationship between the colors observed and the structure of the atom

E. ApplicationUsing the videos, the students can explain why all of element have difference colors


In Grade 9 Science





Day:


LEARNING OBJECTIVES

LEARNING ASSESSMENT

LEARNING CONTENT

LEARNING PROCEDURE

ASSIGNMENT


1. write the electron configuration of the elements in the third period;

2. determine the pattern of filling the orbitals based on the given distribution for the first 10 elements;

Ask the students;What do you know about electronic configuration?

How to write the electronic configuration of the elements in the third period

Ask the students;How to fill orbitals in electronic configuration

A. Subject Matter

Electon configurations


C. MaterialsChalkManilaCartoline

D. ConceptQuantum model of atom said “ electron do not move or stay in a fixed position, but they stay away from the nucleus or move near or far from the nucleus”. The model states that electron can probably be found in a region

5. Preparation A. Ask the

student to pick up the litters

B. Set up multimedia projector

C. Checking of atendance

Presentation1. Ask the students:

1.1 What do you know about Bohr’s atomic model?

1.2 What do you know about quantum mechanical model?

2. Discuss about the quantum number

worksheet

3. devise rules in filling up to the orbitals

Ask the students;How are the rule in electronic configuration?

in space above the nucleus called the orbital.

E. SkillsDiscuss electron configuration


3. Ask the students the following;3.1 what did you

know about quantum number

4. Discuss about the electron configurations

5. Ask the students the following;

5.1 what do you know about electronic configuration?

5.2 How are the rule in electronic configuration?

5.3 How to write the electronic configuration of the elements in the third period

5.4 How to fill orbitals in electronic configuration

G. GeneralizationExplain the electronic configuration

H. ApplicationBy using the cartolina, the students can explain how are the rule to be followed

in deriving the electronic configuration of an element


In Grade 9 Science





Day:


LEARNING OBJECTIVES

LEARNING ASSESSMENT

LEARNING CONTENT

LEARNING PROCEDURE

ASSIGNMENT


1. explain Bohr’s atomic model;

2. relate Bohr’s atomic theory with Quantum mechanical theory;

3. Analyze the energy level

Ask the students;What do you know about Bohr’s atomic model?

Ask the students;What is the similiarity between Bohr’s atomic model with quantum mechanical model

The students analyze or give their opinions about the table of the energy level

A. Subject Matter

Bohr’s Atomic Model and Quantum Mechanical Model


C. MaterialsChalk

D. ConceptAccording to Bohr, electron do not fall on the nucleus because of attractive force that hold them by their particular orbit. Electrons are located in different circular orbits at a certain distance away from the nucleus,

A. Preparation 1. Pray together2. Ask the student to

pick up the litters3. Checking of

atendace

B. Presentation

1. Review Structure of the atom

2. Ask the students:2.1 What do you

know about Bohr’s atomic model?

3. Discuss about the Bohr’s atomic

worksheet

Quantum model of atom said “ electron do not move or stay in a fixed position, but they stay away from the nucleus or move near or far from the nucleus”. The model states that electron can probably be found in a region in space above the nucleus called the orbital.

E. SkillsDiscuss Bohr’s atomic theory and quantum mechanical model


model

4. Ask the students the following;4.1 what do you

know about quantum mechanical model?

5. Discuss the quantum mechanical model

6. Ask the students the following;6.1 what is the

similiarity between Bohr’s atomic model with quantum mechanical model

7. Discuss about the energy level

C. Generalization

Explain the Bohr’s atomic theory and quantum mechanical model

D. Application


In Grade 9 Science





Day:


LEARNING OBJECTIVES

LEARNING ASSESSMENT

LEARNING CONTENT LEARNING PROCEDURE

ASSIGNMENT


1. Describe the quantum number;

2. Describe the electronic configuration;

3. Describe the electronic configuration with

Ask the students;If know n 2, ₌how about l, ml, and ms ?

Ask the students;What is the atom that has 17 atomic number in electronic configuration?

Ask the students;From the element’s position on the periodic table, predict the

A. Subject Matter Quantum number and configuration electron


C. MaterialsChalkIMS

D. ConceptIn quantum number consist of 4 quantum number

a. Principle quantum numbern1234

b. Azimuthal quantum numberl Sublevel0 s1 s,p,2 s,p,d

A. Preparation 1. Pray together2. Ask the student to

pick up the litters3. Checking of

atendace

B. Presentation

1. Review Bohr’s atomic model

2. Discussion about quantum number

worksheet

use periodic tabel

valence shell electron configuration for Ca

3 s,p,d,f

c. Magnetic quantum numberml Number

of orbitalmax of electron

0 1 2-1, 0,

+13 6

-2, -1, 0, +1,

+2

5 10

-3, -2, -1, 0,

+1, +2, +3

7 14

d. Spin quantum number½ - clokwise⁺

½ - counterclockwise₋

In electronic configuration consist 3 rules :

a. Aufbau’s principleAn electron in the ground state normally occupies orbitals in the lowest energy level. Each added electrons occupy the orbitals according to increasing energy with the lowest orbitals filled first.

b. Hund’s ruleElectron must occupy orbitals singly first before pairing and with parallel spin in degenerate orbitals to minimize electron repulsion.

c. Pauli’s exculsion principleEach orbital can accommodate only two electrons and there must have opposite spin

E. Skills

3. Ask the students the following;3.1 how many

maximum of the electron at n 1, 2, 3, and 4?

3.2 if know n 2, ₌how about l, ml, and ms ?

4. Discuss about the electronic configuration

5. Ask the students the following;5.1 Do you know

about electronic configuration?

5.2 What is the atom that has 17 atomic number in electronic configuration

6. Discuss the electronic configuration in periodic table

Discuss quantum number and electronic configuration


7. Ask the students the following;7.1 From the element’s position on the periodic table, predict the valence shell electron configuration for Ca

C. GeneralizationExplain the Bohr’s atomic theory and quantum mechanical model

D. Application

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