Download - Electronic configuration of atoms
2
nucleus
1 3 4
ATOMIC STRUCTUREATOMIC STRUCTURE44 Atomic mass
22Atomic number
number of electrons
number of protons
The sum of protons and neutronsin an atom
Number of Protons in an atom
number of neutrons
Atomic massAtomic numberAtomic mass
protonAtomic mass
electron
2
ELECTRONIC CONFIGURATIONELECTRONIC CONFIGURATIONthe arrangement of the electron in the atom.Electrons are arranged in Energy Levels or Shells around
the nucleus of an atom.
nucleus
1 3 4s
d f
sp
sp d
ps
Atomic orbital
f = 7
d = 5p = 3s = 1
1 Atomic orbital = 2 e-
x 2 = 2x 2 = 6x 2 = 10
x 2 = 14
2e- 8e- 32e-
Main energy level
Subenergy level
no.of electrons
18e-
Given the Element 13
27Complete the missing data.
p+
e-
n0
Number of Location in the
atom
1)
2)
3)
4)
5)
6)
7. The maximum number of electrons that can be contained in an atomic orbital is
8. The particles in an atomic nucleus are collectively known as _______
Multiple choice
a. 2
a. Nucleus c. Nucleolusb. Nucleons
b. 8 c. 6
9. There are __ orbitals in the 3rd energy level.
10. The total number of electrons in the 4th energy level
a. 10 b. 16 c. 3
a. 36 b. 28 c. 32
Given the Element 13
27 Complete the missing data.
p+
e-
n0
Number of Location in the
atom
1)
2)
3)
4)
5)
6)
13
13
14
Inside the nucleus
Inside the nucleus
Electron cloud
a. Nucleus c. Nucleolus
7. The maximum number of electrons that can be contained in an atomic orbital is
8. The particles in an atomic nucleus are collectively known as _______
Multiple choice
b. 8 c. 6
b. Nucleons
a. 2
9. There are a total of __ orbitals in the 3rd energy level.
10. The total number of electrons in the 4th energy level
b. 16 c. 3
c. 32
a. 10
a. 36 b. 28
Please don’t forget to bring your copy of the periodic table tomorrow
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