How many valence electrons are in an atom of magnesium?

2 3 4 5

0% 0%0%0%

1. 2

2. 3

3. 4

4. 5

How many dots around a silicon atom in a Lewis Dot?

2 4 6 8

0% 0%0%0%

1. 2

2. 4

3. 6

4. 8

What is the charge on the strontium ion?

2-

1-

1+

2+

0% 0%0%0%

1. 2-

2. 1-

3. 1+

4. 2+

What is the formula of the ion formed when potassium achieves noble-gas electron

configuration?

K2+

K1+ K

1- K

2-

0% 0%0%0%

1. K2+

2. K1+

3. K1-

4. K2-

Which of the following elements forms an ion with a charge of -1?

fluorin

e

hyd

rogen

pota

ssiu

m

sodiu

m

0% 0%0%0%

1. fluorine

2. hydrogen

3. potassium

4. sodium

How many electrons does nitrogen gain in order to achieve a noble-gas electron

configuration?

1 2 3 4

0% 0%0%0%

1. 1

2. 2

3. 3

4. 4

How does oxygen obey the octet rule when reacting to form compounds?

It g

ains

ele

ctro

ns.

It g

ives

up

elec

trons.

It d

oes n

ot chan

ge it.

..

Oxy

gen d

oes n

ot ob..

0% 0%0%0%

1. It gains electrons.

2. It gives up electrons.

3. It does not change its number of electrons.

4. Oxygen does not obey the octet rule.

What is the charge on each cation in the ionic compound sodium sulfide?

-1 1 2 -2

0% 0%0%0%

1. 1-

2. 1

3. 2

4. 2-

What is the net charge of the ionic compound calcium fluoride?

2-

1- 0 1

0% 0%0%0%

1. 2-

2. 1-

3. 0

4. 1

Which of the following is true about an ionic compound?

It is

a s

alt.

It is

hel

d toge

ther

by

...

It is

com

posed

of a

ni...

all

of th

e ab

ove

0% 0%0%0%

1. It is a salt.

2. It is held together by ionic bonds.

3. It is composed of anions and cations.

4. all of the above

How many valence electrons are transferred from the calcium atom to iodine in the

formation of the compound calcium iodide?

0 1 2 3

0% 0%0%0%

1. 0

2. 1

3. 2

4. 3

What is the formula for the ionic compound sodium nitride?

Na3

N

NaN

3

Na2

N2 N

aN

0% 0%0%0%

1. Na3N

2. NaN3

3. Na2N2

4. NaN

What is the formula for aluminum oxide?

Al2

O3

AlO

3

Al3

O2

AlO

0% 0%0%0%

1. Al2O3

2. AlO3

3. Al3O2

4. AlO

What is the formula for potassium sulfide?

KS2

K2S

2 K

2S KS

0% 0%0%0%

1. KS2

2. K2S2

3. K2S

4. KS

How does titanium obey the octet rule when reacting to form compounds?

It g

ains

ele

ctro

ns.

It g

ives

up

elec

trons.

It d

oes n

ot chan

ge it.

..

Cal

cium

does

not

ob..

0% 0%0%0%

1. It gains electrons.

2. It gives up electrons.

3. It does not change its number of electrons.

4. Calcium does not obey the octet rule.

What is the charge of the anion in the ionic compound calcium sulfide?

-1 1 2 -2

0% 0%0%0%

1. -1

2. 1

3. 2

4. -2

What is the charge of the cation in the ionic compound CaS?

1- 1 2

- 2

+

0% 0%0%0%

1. 1-

2. 1

3. 2-

4. 2+

What is the charge on each ammonium ion in Rb3N?

3-

2-

1-

1+

2+

0% 0% 0%0%0%

1. 3-

2. 2-

3. 1-

4. 1+

5. 2+

What is the net charge of the ionic compound calcium fluoride?

2-

1- 0 1

0% 0%0%0%

1. 2-

2. 1-

3. 0

4. 1

What is the formula for the ionic compound sodium nitrite?

Na3

NO3

Na3

N

Na2

NO3

NaN

O3

0% 0%0%0%

1. Na3N3

2. Na3N

3. Na2N3

4. NaN3

What is the formula ofiron(III) oxide?

FeO

3 F

eO

Fe2

O3

Fe3

O2

0% 0%0%0%

1. FeO3

2. FeO

3. Fe2O3

4. Fe3O2

What is the formula for potassium sulfide?

K2S

O4

K2(

SO)4

K2(

SO4)2

K(S

O4)2

0% 0%0%0%

1. K2S

2. K2S4

3. K4S2

4. K(SO4)2

What is the formula of the ion formed when potassium achieves noble-gas electron

configuration?

K2+

K1+ K

1- K

2-

0% 0%0%0%

1. K2+

2. K1+

3. K1-

4. K2-

Name the following compound: CaCl2

Cal

cium

dic

hlorid

e

Cal

cium

(II)

chlo

ride

Cal

cium

chlo

ride

Cal

cium

chlo

rine

0% 0%0%0%

1. Calcium dichloride

2. Calcium (II) chloride

3. Calcium chloride

4. Calcium chlorine

What is the correct formula for magnesium chloride?

MnCl

Mn2C

l

MnCl2

Mn2C

l2

0% 0%0%0%

1. MgCl

2. Mg2Cl

3. MgCl24. Mg2Cl2

What is the correct formula for sodium phosphate?

NaP

NaP

O4

Na3

PO4

Na(

PO4)3

0% 0%0%0%

1. NaP

2. NaPO4

3. Na3PO4

4. Na(PO4)3

How many valence electrons are in an atom of magnesium?

2 3 4 5

0% 0%0%0%

1. 2

2. 3

3. 4

4. 5

How many valence electrons are in a silicon atom?

2 4 6 8

0% 0%0%0%

1. 2

2. 4

3. 6

4. 8

How does calcium obey the octet rule when reacting to form compounds?

It g

ains

ele

ctro

ns.

It g

ives

up

elec

trons.

It d

oes n

ot chan

ge it.

..

Cal

cium

does

not

ob..

0% 0%0%0%

1. It gains electrons.

2. It gives up electrons.

3. It does not change its number of electrons.

4. Calcium does not obey the octet rule.

What is the electron configuration of the calcium ion?

1s2

2s22

p63s

2

1s2

2s22

p63s

23p6

1s2

2s22

p63s

23p6

4s2

1s2

2s22

p63s

23p2

4s2

0% 0%0%0%

1. 1s22s22p63s2

2. 1s22s22p63s23p6

3. 1s22s22p63s23p64s2

4. 1s22s22p63s23p24s2

What is the electron configuration of the sulfide ion?

1s2

2s22

p63s

23p6

1s2

2s22

p63s

23p2

1s2

2s22

p63s

23p4

1s2

2s22

p63s

6

0% 0%0%0%

1. 1s22s22p63s23p6

2. 1s22s22p63s23p2

3. 1s22s22p63s23p4

4. 1s22s22p63s6

What is the charge on the strontium ion?

2-

1-

1+

2+

0% 0%0%0%

1. 2-

2. 1-

3. 1+

4. 2+

What is the formula of the ion formed when potassium achieves noble-gas electron

configuration?

K2+

K1+ K

1- K

2-

0% 0%0%0%

1. K2+

2. K1+

3. K1-

4. K2-

Which of the following elements forms an ion with a charge of -1?

fluorin

e

hyd

rogen

pota

ssiu

m

sodiu

m

0% 0%0%0%

1. fluorine

2. hydrogen

3. potassium

4. sodium

How many electrons does nitrogen gain in order to achieve a noble-gas electron

configuration?

1 2 3 4

0% 0%0%0%

1. 1

2. 2

3. 3

4. 4

How does oxygen obey the octet rule when reacting to form compounds?

It g

ains

ele

ctro

ns.

It g

ives

up

elec

trons.

It d

oes n

ot chan

ge it.

..

Oxy

gen d

oes n

ot ob..

0% 0%0%0%

1. It gains electrons.

2. It gives up electrons.

3. It does not change its number of electrons.

4. Oxygen does not obey the octet rule.

What is the electron configuration of the oxide ion (O)?

1s2

2s2

1s2

2s22

p2

1s2

2s22

p4

1s2

2s22

p6

0% 0%0%0%

1. 1s22s2

2. 1s22s22p2

3. 1s22s22p4

4. 1s22s22p6

What is the charge on the cation in the ionic compound sodium sulfide?

-1 1 2 -2

0% 0%0%0%

1. -1

2. 1

3. 2

4. -2

What is the net charge of the ionic compound calcium fluoride?

2-

1- 0 1

0% 0%0%0%

1. 2-

2. 1-

3. 0

4. 1

Which of the following is true about an ionic compound?

It is

a s

alt.

It is

hel

d toge

ther

by

...

It is

com

posed

of a

ni...

all

of th

e ab

ove

0% 0%0%0%

1. It is a salt.

2. It is held together by ionic bonds.

3. It is composed of anions and cations.

4. all of the above

How many valence electrons are transferred from the calcium atom to iodine in the

formation of the compound calcium iodide?

0 1 2 3

0% 0%0%0%

1. 0

2. 1

3. 2

4. 3

What is the formula for the ionic compound sodium nitride?

Na3

N

NaN

3

Na2

N2 N

aN

0% 0%0%0%

1. Na3N

2. NaN3

3. Na2N2

4. NaN

What is the formula unit of aluminum oxide?

Al2

O3

AlO

3

Al3

O2

AlO

0% 0%0%0%

1. Al2O3

2. AlO3

3. Al3O2

4. AlO

What is the formula for potassium sulfide?

KS2

K2S

2 K

2S KS

0% 0%0%0%

1. KS2

2. K2S2

3. K2S

4. KS

An ionic bond is a bond between ____.

a c

atio

n and a

n anio

n

val

ence

ele

ctro

ns an

...

the

ions

of two d

iffer

e..

the

ions

of two d

iffer

e..

0% 0%0%0%

1. a cation and an anion

2. valence electrons and cations

3. the ions of two different metals

4. the ions of two different nonmetals

Write the formula for the compound barium oxide.

Write the formula for the compound rubidium phosphide.

Write the formula for the compound boron chloride.