Science Department
Topic
Lesson
objectives
Ell /Special
Needs Support
Mini Lesson
Electronic configuration Grade-12 (Sep- 11th -Sep-15th )
Students will be able to
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link ideas of electron shells to electronic configuration,
describe the number and composition of electronic orbitals within the principle quantum numbers,
describe the relative energy levels and composition of the principal quantum numbers and orbitals,
use the rules governing the order in which electrons fill and are lost from orbitals.
Overhead projector
White board
Periodic table chart
Students will be explained the particle and wave nature of electrons. Demonstration of the concept with the help of You tube video.
https://www.youtube.com/watch?v=NIwcDnFjj98
Students will get to know about the atomic orbital and how to determine the possibility of an electron to be in a particular orbital using
electron configuration and quantum numbers. Introduction to shells, sub-shells (s,p,d,f) to write the electronic configuration. They will
get to know how to calculate the maximum number of electrons in the orbitals and distribution of electrons in various energy levels.
Science Department
Intro
Vocabulary
Guided Practice
Atomic orbitals
Electronic configuration
Quantum numbers
Principal quantum numbers
Azimuthal quantum number
Students will be divided in groups and will be given a list of elements. Students will write the atomic number of the elements and write
their electronic configuration using the atomic orbital theory. They will also write the principal quantum number and corresponding
name of the shells, number of orbitals and maximum number of electrons in the orbital.
Differentiated
Activities
Approaching-
Differentiated
worksheets.
Learners at this level will identify the elements with their chemical names and write their atomic numbers and number of valence
electrons. They will attempt to write the Bohr’s electronic configuration to show the distribution of electrons. Differentiated worksheets.
MeetingLearners will write the atomic number and find the number of valence electrons. They will find the principal quantum numbers and the
corresponding shell name and numbers of orbitals. Differentiated worksheet.
Exceeding-
Science Department
Learners will write the electronic configuration using the principal quantum numbers and find the maximum number of electrons of first
20 elements. They will also define the wave and particle nature of atoms. Differentiated worksheet.
Homework
Practice Assignment on study Island.