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WorksheetsChemical Bonding Review
Total questions: 15
Worksheet time: 17mins
Name
Class
Date
1.
Which part of the atom is responsible for chemical bonding?
a)
Inner/Core Electrons
b)
Outer/Valence Electrons
c)
Protons
d)
Neutrons
2.
What best describes valence electrons?
a)
Electrons in the inner-most shell.
b)
Electrons in the outer-most shell.
c)
Electron that became a beta particle.
3.
Where are valence electrons located?
a)
In the inner-most shell of an atom.
b)
In the outer-most shell of an atom.
c)
Between the inner and outer shells of an atom.
d)
Inside the nucleus of an atom.
4.
How many valence electrons do most atoms need to have a complete outer shell and be happy?
a)
1
b)
8
c)
10
d)
5
5.
Which two elements only need two valence electrons to be happy?
a)
Hydrogen and Helium
b)
Lithium and Neon
c)
Copper and Iron
d)
Californium and Berkelium
6.
Why do Hydrogen and Helium only need two valence electrons?
a)
The first electron shell can only hold two electrons.
b)
They are both metals.
c)
They both begin with H.
d)
They are both gases.
7.
How many valence electrons do elements in Group 1, the Alkali Metals, have?
a)
1
b)
2
c)
6
d)
7
8.
How many valence electrons do elements in Group 2, the Alkaline Earth Metals, have?
a)
1
b)
2
c)
6
d)
7
9.
If Oxygen has 6 valence electrons and is in Group 16 while Chlorine has 7 valence electrons and is in Group 17, what is the rule between group number and valence electrons?
a)
Multiply by 2.
b)
Take the absolute inverse of the square root.
c)
e=mc2
d)
Subtract 10.
10.
How do ions form?
a)
Atoms gain or lose electrons to fill or empty the valence shell.
b)
Atoms like cats so they become "pawww-sitive".
c)
Atoms gain or lose electrons to change their atomic mass.
d)
Atoms gain or lose electrons to match the number of neutrons.
11.
If an element gives away an electron, will it form a positive ion or a negative ion?
a)
Positive.
b)
Pawww-sitive.
c)
Negative.
d)
Neutral.
12.
If an element gains an electron, will it form a positive ion or a negative ion?
a)
Positive.
b)
Negative.
c)
Neutral.
d)
Square root of -1.
13.
Why does an ion have a charge?
a)
There are different numbers of protons and neutrons.
b)
There are different numbers of neutrons and electrons.
c)
There are different numbers of protons and electrons.
d)
There are different numbers for atomic mass and atomic number.
14.
How do ionic bonds form?
a)
Atoms share electrons to fill their valence shell.
b)
Atoms gain or lose electrons to fill their valence shell.
c)
Atoms donate electrons to a "sea" of electrons.
15.
How do covalent bonds form?
a)
Atoms share electrons to fill their valence shell.
b)
Atoms gain or lose electrons to fill their valence shell.
c)
Atoms donate electrons to a "sea" of electrons.
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