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Electron Configuration

The document outlines a lesson plan for Grade 8 students focusing on electron affinity and electron configuration. It includes activities for decoding words, objectives for understanding the importance of these concepts, and trends in electron affinity across periods and groups. Additionally, it covers electron configuration rules, subshells, and provides examples and quizzes for student engagement.

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Paul Patulot
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190 views38 pages

Electron Configuration

The document outlines a lesson plan for Grade 8 students focusing on electron affinity and electron configuration. It includes activities for decoding words, objectives for understanding the importance of these concepts, and trends in electron affinity across periods and groups. Additionally, it covers electron configuration rules, subshells, and provides examples and quizzes for student engagement.

Uploaded by

Paul Patulot
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
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Praye

r
Febraury 4,2025

GOODMORNING
GRADE 8
Febraury 4,2025

CHECKING OF
AT TENDANCE
RECAP OF THE
PREVIOUS
LESSON
DECODE ME
MECHANIC
1.Each
S: letter has a
corresponding number
2. Guess the hidden words
behind those number using
number code.
1.

5 12 5 3 20 18 15
14
1.

5 12 5 3 20 18 15
14
E L E C T R O
N
2.

1 6 9 14 14 9
20 25
2.

1 6 9 14 14 9
20 25
A F F I N I
T Y
3.

5 12 5 3 20 18 15
14

3 15 14 6 9 7 21 18
1 20 9 15 14
3.

5 12 5 3 20 18 15
14
E L E C T R O N
3 15 14 6 9 7 21 18
C O 1N20
F 9 15U14
I G R A T I O N
4.

1 20 15 13
4.

1 20 15 13
A T O M
5.

1 20 15 13 9 3

14 21 13 2 5 18
5.

1 20 15 13 9 3
A T O M I C
14 21 13 2 5 18
N U M B E R
OBJECTIVES
AT AT THE END OF THE LESSON, STUDENTS
SHOULD BE ABLE TO;

Appreciate the
1.Discuss what is Write the importace of
electron affinity electron having rules in
and electron configuration of writing electron
configuration the given configuration of
elements.s. elements and
What is Electron Affinity?
It is the ability of an atom to
accept electron
The trend across a peiod
ELECTRON AFFINITY increases as it
goes across a period.
The trend down the
group
ELECTRON AFFINITY decreases as it
goes down a column
EXCEPTIONS
NOBLE GASES HAVE NO AFFINITY- They
have full valence shells and by adding or
taking away electrons, they become stable.
FLOURINE , NITROGEN, BERYLIUM, MAGNESIUM,
ZINC
-has no affinity
ELECTRON

CONFIGURATION
ELECTRON CONFIGURATION
 Arrangement of electrons in the
space around the nucleus of an
atom.
 Distribution of electrons in the
orbitals of an atom

 It follow a standard notation in which


all electron containinng atomic
subshells are placed in sequenced.
SUBSHELLS
 A subdivision of electron shells or
energy levels seperated by electron
orbitals
 Are labelled s,p,d,f in an electron shell
 The block names (s,p,d,f) are derived
from the spectroscopic notation for the
associated atomic
orbitals: sharp,principal,diffuse and
fundamental
Maximum number of
electrons

1st shell---2e-
2nd shell---8e-
3rd shell----18e-
4th shell----32e-
Electron Configuration Mnemonic
RULE AND

CONCEPT
AUFBAU PRINCIPLE
 Principleof electrons filling up
the orbitals in order of increasing
energy.
 Within an energy level, s
orbitals are the lowest energy
followed by p,d and f. F orbitals
are the highest energy for the
level.
EXAMPLE
_x0004_

EXAMPLE
1S2 2S2 2P6 3S2 3P2
YOUR TURN!
YOUR TURN!
1s2 2s2 2p6 3s2 3p6 4s1
QUIZ 1.Hydrogen

2.Lithium
Write the electron
3.Neon
configuration of
each element. 4.Titanium

5.Zinc
Assignment 1.Nb

2.Ga
Write the electron
3.Br
configuration of
each element. 4.Co

5.Sr
Thanks for
listening!

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