Module 2 - Electron Structure
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What does the principal quantum number indicate?
The shell occupied by the electrons
What is a shell?
A group of orbitals with the same principal quantum number
How many electrons can the 1st shell hold?
2
How many electrons can the 2nd shell hold?
8
How many electrons can the 3rd shell hold?
18
How many electrons can the 4th shell hold?
32
What is an orbital?
A region around the nucleus that can hold up to two electrons with opposite spins
How many electrons can an orbital hold?
2
What are the 4 types of orbitals?
● s orbital ● p orbital ● d orbital ● f orbital
What is the shape of a s-orbital?
Spherical
What is the shape of a p-orbital?
Dumb-bell shape
How many orbitals are found in a S subshell?
1
How many electrons can be held in a S subshell?
2
How many orbitals does P subshell have?
3
How many electrons can be held in a P subshell?
6
How many orbitals are present in a D subshell?
5
How many electrons are present in a D subshell orbital?
10
How many orbitals are found in a F subshell?
7
How many electrons can fill F subshell?
14
What letter used to represent shell number?
n
From which shell onwards is S orbital present?
n=1
From which shell onwards is P-orbital present?
n = 2
From which shell onwards is D-orbital present?
n = 3
From which shell onwards is F-orbital present?
n = 4