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Unit 3 Review

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.
An ionic bond forms when atoms ___________ electrons.
a)
gain
b)
share
c)
increase
d)
transfer
2.

In an ionic bond, the ions are held together because...

a)

the positive nucleus of each ion attracts the other ion's negatively charged electrons

b)

the ions have opposite charges

c)

as the electron moved from one atom to another it pulled the atom along with it

d)

electrons are being shared

3.

What is responsible for bringing cations and anions together?

a)

the size of the ions

b)

the opposite charges are attracted to one another

c)

the similar charges are attracted to one another

d)

depends on what period they're in

4.

When assigning ionic charge it is always written as a...

a)

superscript

b)

subscript

c)

coefficient

d)

script

5.

When assigning the number of individual atoms in a chemical formula it is written as a...

a)

superscript

b)

subscript

c)

coefficient

d)

script

6.
In a covalent bond, one or more electrons are? 
a)
shared 
b)
lost 
c)
gained 
d)
transferred 
7.

If an atom has no charge, which of the following must be true?

a)

It has more neutrons than protons or electrons.

b)

There are only neutrons inside the atom.

c)

Its number of protons is equal to its number of electrons.

d)

The neutrons in the atom outnumber the electrons and protons.

8.
Covalent compounds
a)
Share electrons
b)
transfer electrons
c)
None
d)
conduct electricity
9.
What is an atom or group of atoms that has an electric charge?
a)
ion
b)
metal
c)
nonmetal
d)
ionic compound
10.
If an atom of nitrogen gains 3 electrons, what is its overall charge?
a)
Neutral - No charge
b)
+3
c)
-3
d)
-1
11.

What is the name given to the group 1A elements?

a)

Alkali Metals

b)

Alkaline Earth Metals

c)

Transition Metals

d)

Halogens

12.

What is the name given to the group 2A elements?

a)

Alkali Metals

b)

Alkaline Earth Metals

c)

Transition Metals

d)

Chalcogens

13.

What is the name given to the group 7A elements?

a)

Alkali Metals

b)

Alkaline Earth Metals

c)

Transition Metals

d)

Halogens

14.

What is the name given to the elements in groups 3 through 12?

a)

Noble Gases

b)

Inner Transition Metals

c)

Transition Metals

d)

Halogens

15.

What is the name given to the group 8A elements?

a)

Alkali Metals

b)

Alkaline Earth Metals

c)

Noble Gases

d)

Halogens

16.
When naming ionic compounds with transition metals you need to include roman numerals to show the _____ of the metal..
a)
atomic number
b)
mass number
c)
charge
d)
ionization energy
17.

A positively charged ion is

a)

a cation.

b)

an anion.

c)

in a good mood.

d)

is an optimist.

18.

A negatively charged ion is

a)

a cation.

b)

an anion.

c)

in a good mood.

d)

is an optimist.

19.
The elements on the left side of the periodic table are generally always ______ and the elements on the right side of the periodic table are generally always ______.
a)
cations; anions
b)
anions; cations
c)
reactive; non-reactive
d)
non-reactive; reactive
20.
An example of a polyatomic ion is:
a)
O2-
b)
Na+
c)
CO32-
d)
Ag+