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WorksheetsChemistry Bonding Basics
Total questions: 22
Worksheet time: 18mins
Name
Class
Date
1.
A(n) _________ is an ion with a positive (+) charge.
a)
anion
b)
cation
c)
ion
d)
solute
2.
When an atom loses an electron, it becomes a:
a)
positive ion
b)
negative ion
c)
neutral ion
d)
neutral atom
3.
Magnesium bromide is an ionic compound with the chemical formula MgBr₂. What does the "2" tell you?
a)
There are 2 bromide ions for every magnesium ion
b)
Bromide has a 2- charge
c)
Bromide has a 2+ charge
d)
There are 2 magnesium ions to every bromide ion
4.
Elements in Group 1 lose one electron to form ions with a _________________ charge.
a)
1+
b)
2+
c)
0
d)
1-
5.
A charged particle that has gained at least one electron is called a(n) _____.
a)
Anion
b)
Cation
c)
Anonion
d)
chemistry cat
6.
Which is the correct name for CaBr2?
a)
Calcium Bromine
b)
Bromine Calcium
c)
Calcium Bromide
d)
Carbon and Bromine
7.
A covalent compound contains _______.
a)
Alkali metals
b)
Two metals
c)
A metal and a nonmetal
d)
Nonmetals
8.
When two atoms share electrons, a chemical bond is formed. This type of bond is called:
a)
covalent bond
b)
ionic bond
c)
crystal bond
d)
polyatomic bond
9.
Which group of elements have full outer shells?
a)
The alkali metals
b)
The full gases
c)
The halogens
d)
The noble gases
10.
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
11.
Ionic compounds contain ions. The numbers of electrons, neutrons and protons in four particles, W, X, Y and Z, are shown in the figure.State which particle, W, X, Y or Z, is a negative ion.
a)
W
b)
X
c)
Y
d)
Z
12.
The element rubidium, Rb, is immediately below potassium in the Periodic Table.
It reacts with bromine to form the compound rubidium bromide.
Which descriptions of this compound are correct?
a)
A
b)
B
c)
C
d)
D
13.
Q+ is an ion of element Q.
What has the highest value in the ion?
a)
the nucleon number
b)
the number of electrons
c)
the number of neutrons
d)
the proton number
14.
Why do bonds form?
a)
To fill the valence shell of electrons for the elements involved
b)
to release energy stored in the bonds
c)
because whenever you mix two chemicals, there will be a reaction
d)
because of attraction
15.
Atoms with a strong attraction for electrons they share with another atom exhibit
a)
zero electronegativity
b)
low electronegativity
c)
high electronegativity
d)
negative electronegativity
16.
How many valence electrons does Oxygen have?
a)
8
b)
2
c)
16
d)
6
17.
How many atoms of oxygen are in one unit of Mg3(PO4)2?
a)
4
b)
6
c)
8
d)
12
18.
What is the correct formula for this molecule?
a)
Si4F
b)
SiF4
c)
SiF
d)
Si4F4
19.
Which element does this structure represent?
a)
Lithium
b)
Helium
c)
Scandium
d)
Fluorine
20.
What group does this element belong to?
a)
Group 1: Alkali metals
b)
Group 18: Noble Gases
c)
Group 2: Alkaline-Earth Metals
d)
Group 17: Halogens
21.
Write the formula for barium + nitrogen
a)
Ba2N3
b)
Ba3N2
c)
BaN
d)
BaN3
22.
What will be the charge of a bromine ion?
a)
+7
b)
-7
c)
-1
d)
+1
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