Transcript Electronic configuration of atoms

1
nucleus
2
3
4
ATOMIC STRUCTURE
4
2
Atomic mass
The sum of
protons and neutrons
in an atom
Atomic number
Number of Protons
in an atom
number of
protons
number of
electrons
number of
neutrons
Atomic mass
Atomic
electron
proton number
ELECTRONIC CONFIGURATION
Electrons
are arranged
in electron
Energy Levels
Shells around the
the arrangement
of the
in theor
atom.
nucleus of an atom.
nl
x
no.of
Sub electrons
Main
energy energy
level level
nucleus
f
1 2 p3 d 4 d
p
p
s
s s
s
2e- 8e18e-
f = 7 x 2 = 14
d = 5 x 2 = 10
32e-
p=3 x2=6
s=1 x2=2
Atomic orbital
1 Atomic orbital = 2 e-
Given the
Element
27 Complete the
13 missing data.
Location in the
atom
Number of
+
p
1)
4)
e
2)
5)
0
n
3)
6)
Multiple choice
7. The maximum number of electrons that can be
contained in an atomic orbital is
a. 2
b. 8
c. 6
8. The particles in an atomic nucleus are collectively
known as _______
a. Nucleus
b. Nucleons
c. Nucleolus
9. There are __ orbitals in the 3rd energy level.
a. 10
b. 16
c. 3
10. The total number of electrons in the 4th energy level
a. 36
b. 28
c. 32
Given the
Element
27
13
Complete the
missing data.
Location in the
atom
Number of
+
p
1)
13
4)
Inside the
nucleus
e
2)
13
5)
Electron
cloud
6)
Inside the
nucleus
0
n
3)
14
Multiple choice
7. The maximum number of electrons that can be
contained in an atomic orbital is
a. 2
b. 8
c. 6
8. The particles in an atomic nucleus are collectively
known as _______
a. Nucleus
b. Nucleons
c. Nucleolus
9. There are a total of __ orbitals in the 3rd energy level.
a. 10
b. 16
c. 3
10. The total number of electrons in the 4th energy level
a. 36
b. 28
c. 32
Please don’t forget to bring
your copy of the periodic
table tomorrow
This powerpoint was kindly donated to
www.worldofteaching.com
http://www.worldofteaching.com
Is home to well over a thousand powerpoints
submitted by teachers. This a free site. Please visit
and I hope it will help in your teaching