Competency Based Lesson / Unit Plan UNIT -2- Atomic Structure-11th Standard

Name of Vidyalaya………………………..

Competency Based Lesson / Unit Plan

1. Name of the Teacher ……………………………. Designation: PGT Chemistry

2. Subject:- CHEMISTRY Class :-11 Section …………….

3. Lesson/Unit Name :-Structure of Atom

4. No. of periods required:- 10 Duration From: ….. / … / ……. to …/… / …….

A . Learning Outcomes( specific to the lesson mapped with NCERT learning outcomes) Students will be able to

1. Describe the structure of the atom.

2. State the location, relative charge, and atomic mass of the subatomic particles.

3. Know about the discovery of electron, proton and neutron and their characteristics

4. Describe J.J Thomson, Rutherford atomic models

5. Define atomic number, mass number 6. Define isotope, isobars

7. Understand the dual nature of electrons

8. Understand the nature of Electromagnetic radiation and Planck’ quantum theory.

9. Perform quantitative calculations based on the relationship between wavelength, energy, and the speed of light.

10. Define wavelength, frequency, and energy of a photon.

11. Identify, and rank the different types of light radiation.

11.Describe the photoelectric effect and relate the energy and/or intensity of the photons to the work function and kinetic energy of the ejected electrons.

12.Understand the relationship between discrete electron energy levels and atomic absorption and emission spectra.

13.Apply the Rydberg formula to predict the energy of transitions between two n levels in the hydrogen atom.

14.Describe the Bohr’s Model of an atom.

15.Understand the important features of the quantum mechanical model of atom.

16.State de Broglie relation and Heisenberg’s uncertainty principle.

17.Define an atomic orbital in terms of quantum numbers.

18.State Aufbau principle, Pauli’s exclusion principle and Hund’s rule of maximum multiplicity.

19.Write the electronic configurations of atoms

B. Details of pedagogical Strategies / process( Art integration, Sports integrated, Story telling based, Toy based/any other pedagogy:

Art integration activity: Making 3D models of different orbitals

. Sports integration: The students will run in a ground, based on their speed of running, they will calculate the wavelength associated with them. With the help of this activity, ask them the significance of de-Broglie’s equation in macroscopic world

Story Telling based- The story of Bohr’s atomic model

Talk between scientists through plays like between Bohr and Rutherford about the structure of atom. ·

C Topic of the lesson for presentation by the students-

CURIOSITY QUESTIONS:

· Based on their speed, how can we calculate the wavelength of different subatomic particles?

· Why spin of electron is taken as plus half and minus half only?

· Why atomic mass is taken as the sum of protons and neutrons only?

· Is it possible that an orbital can accommodate more than two electrons? If not, give reasons

D Name 21^st Century Skills to be developed–

Critical Thinking by solving numerical related to De-broglie wave equation and Heisenberg-s uncertainty principle.
Collaboration by writing the electronic configurations of higher elements.
communication .
Creativity: students will express perceptives about spin of the electron.

E . Activities /Experiments/Hands on learning/Projects:

Engaging students into group discussion on topics like Emission spectrum, absorption spectrum, electronic configuration etc.

· Conducting quiz in class, giving worksheets based on Bohr’s model.

· Talk between scientists through plays like between Bohr and Rutherford about the structure of atom.

· Slip tests to develop time management skills.

· Analytical approach and applications related, adopting observation and thinking skills.

F . Interdisciplinary linkage and infusion of life skills, Values, Gender Sensitivity and Environmental Awareness : Students will apply the knowledge of shells,energies of orbits and De Broglies concept in Modern Physics.

G : Resources(Including ICT)-

www.chemigod.com
You tube videos.
PPT
www.chemistryworld.com
www.chem.uci.edu
NCERT text book

H: Assessment items for measuring the attainment of learning outcomes in the class and as home assignments( Teacher should plan Assessment Items and link the same with learning outcomes mentioned in para A

Items	No of Items	SN of LO	Items	No of Items	SN of LO
Oral Quiz	1	1,2,3	Presentation	1	6
Portfolio			Puzzle
Multiple choice Questions	10	11	Group Project	1	2
Very Short Answer Questions	10	11	Individual Project	1	2
Short Answer Questions	5	9,10,11	Any Other Item
Long Answer Questions	2	11
Competency Based Questions	3	6,7,8,9,10,11