WorksheetsElectron Configuration Test
Total questions: 20
Worksheet time: 35mins
Name
Class
Date
1.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
2.
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
a)
3
b)
6
c)
8
d)
10
3.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2 2s2 2p6 3s2 3p5
b)
1s2 2s2 2p6 3s2 3p6
c)
1s2 2s2 2p6 3s2 3p7
4.
How many electrons can the d sublevel hold?
a)
14
b)
10
c)
2
d)
6
5.
How many electrons can the s sublevel hold?
a)
14
b)
10
c)
2
d)
6
6.
Choose the correct shortcut configuration for iodine.
a)
[Ar]4s24d104p5
b)
[Kr]5s24d105p5
c)
[Xe]5s25d105p5
d)
none of the above
7.
Each row on the periodic table represents:
a)
an energy level
b)
a sublevel
c)
an electron
d)
an orbital
8.
Which area on the periodic table represents the electrons in the "d" sublevel?
a)
representative elements
b)
columns 3-8
c)
rare earth elements
d)
transition elements
9.
Energy levels are denoted by:
a)
letters
b)
numbers
c)
a combination of letters and numbers
d)
subscripts
10.
Which periodic table family could have electrons filling orbitals in the s-block?
a)
Alkaine Earth
b)
Halogens
c)
Noble Gases
d)
Transition Metals
11.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
12.
What is the noble gas configuration for beryllium?
a)
[He]1s2
b)
[He]2s2
c)
[Li]2s1
d)
[Li]2s2
13.
What is the charge of an atom that has lost one electron?
a)
-1
b)
-2
c)
+1
d)
+2
14.
What is the charge of an atom that has gained one electron?
a)
-1
b)
-2
c)
+1
d)
+2
15.
How many electron can be found in a p orbital?
a)
2
b)
3
c)
4
d)
6
16.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
17.
The number of protons and electrons are the same as
a)
Neutrons
b)
Atomic number
c)
atomic mass
d)
Electron shells
18.
Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?
a)
Hund’s Rule
b)
Aufbau Principle
c)
Pauli Exclusion Principle
19.
What does Pauli exclusion principle state ?
a)
states that each electron occupies the lowest energy orbital available
b)
states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electros have opposite spins
c)
states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals
20.
What does Hund's rule states ?
a)
states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals
b)
states that each electron occupies the lowest energy orbital available
c)
states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electros have opposite spins
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