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Quizizz - U7 D1 & D2 Review

Total questions: 59

Worksheet time: 59mins

Name
Class
Date
1.

How many valence electrons are shown in the diagram?

a)

16

b)

7

c)

6

d)

2

2.

TRUE OR FALSE: Ionic compounds have high boiling points because they consist of a strong ionic bond.

a)

TRUE

b)

FALSE

3.
How do covalent bonds form?
a)
Donating & receiving valence e- between atoms.
b)
Opposite slight charges attract each other between compounds.
c)
Scientists are still not sure how they form.
d)
Sharing valence e- between atoms.
4.

Which of the following is true for ionic bonding & ionic compounds?

a)

They must be made of ions with like charges.

b)

The negative ion must be written first.

c)

Compounds must have an overall charge of zero.

d)

They are made of metals and nonmetals.

e)

The positive ion must be written first.

5.

When Alkali metals (Group 1) form ions, they ____.

a)

lose 1 proton

b)

gain 1 proton

c)

lose 1 electron

d)

gain 1 electron

6.

Which of the following elements does NOT form an ion with a charge of 2+?

a)

Beryllium

b)

Strontium

c)

Magnesium

d)

fluorine

7.

How does fluorine (F) obey the octet rule when reacting to form compounds?

a)

It doesn’t change its number of electrons

b)

Fluorine does not obey the octet rule.

c)

It gains electrons.

d)

It gives up electrons.

8.

How many valence electrons are transferred from the sodium atom to fluoride in the formation of the compound sodium fluoride?

a)

0

b)

1

c)

2

d)

3

9.
Atoms gain lose, gain, or ______electrons to get a stable outer energy level.
a)
share
b)
split
c)
create
d)
destroy
10.
A ____________is the force that holds atoms together in a compound.
a)
Chemical Formula
b)
Chemical Reaction
c)
Chemical Bond
d)
Synthesis Reaction
11.
Some elements combine chemically and no longer have the same ________________ they did before forming a compound.
a)
valence electons
b)
energy
c)
properties
d)
group number
12.
A _________________ is composed of symbols and subscripts indicating the number of atoms of an element in a compound.
a)
Chemical Equation
b)
Chemical Reaction
c)
Synthesis Reaction
d)
Chemical Notation
13.
Atoms gain lose, gain, or ______electrons to get a stable outer energy level.
a)
share
b)
split
c)
create
d)
destroy
14.
A ____________is the force that holds atoms together in a compound.
a)
Chemical Formula
b)
Chemical Reaction
c)
Chemical Bond
d)
Synthesis Reaction
15.

Which of the following BEST describes a chemical bond?

a)

A physical connection holding atoms together.

b)

A force holding atoms together.

c)

Two elements combined into a single substance.

16.

When does an atom become an ion?

a)

When it gains or loses electrons and takes on a charge.

b)

When it is stable because it has a full set of valence electrons.

c)

When it forms a compound with another atom.

17.

If an atom ​ (a)   electrons, it will become negative.

If an atom ​ (b)   electrons, it will become positive.

Choose from the below words
gains
loses
destroys
creates
18.

How many oxygen are in one unit of the compound Fe2O3Fe_2O_3  ?

(a)  

19.

How many electrons do most elements want to have in their outer shell to be stable?

(a)  

20.

What combination of elements will form a covalent compound?

a)

Metal and metal.

b)

Metal and nonmetal.

c)

Nonmetal and nonmetal.

21.

What ionic charge would an atom with this electron dot diagram form?

a)

+2

b)

2

c)

-2

22.

What ionic charge would an element with this electron dot diagram take on?

(a)  

23.

What charge does magnesium take on?

a)

+1

b)

+2

c)

+3

24.

What is the correct name for the compound MgI2MgI_2  

a)

magnesium iodide

b)

magnesium diiodide

c)

monomagnesium diiodide

25.
Ionic bonds are between...
a)
nonmetals and nonmetals
b)
carbon and oxygen
c)
metals and nonmentals
d)
hydrogen and chlorine
26.
Ionic bonds are between...
a)
nonmetals and nonmetals
b)
carbon and oxygen
c)
metals and nonmentals
d)
hydrogen and chlorine
27.
What are valence electrons?
a)
sum of the protons and neutrons
b)
protons minus electrons
c)
electrons in the inner shells
d)
electrons in the outer shell
28.
If an atom gains two electrons what charge will it have?
a)
-2
b)
-1
c)
+1
d)
+2
29.
How many valence electrons does oxygen have?
a)
2
b)
4
c)
5
d)
6
30.
Same repel, opposites
a)
avoid
b)
attract
c)
push
d)
pull
31.

If an atom ​ (a)   electrons, it will become negative.

If an atom ​ (b)   electrons, it will become positive.

Choose from the below words
gains
loses
destroys
creates
32.

How many electrons do most elements want to have in their outer shell to be stable?

(a)  

33.

What ionic charge would an atom with this electron dot diagram form?

a)

+2

b)

2

c)

-2

34.

What ionic charge would an element with this electron dot diagram take on?

(a)  

35.

What charge does magnesium take on?

a)

+1

b)

+2

c)

+3

36.
Ionic bonds are between...
a)
nonmetals and nonmetals
b)
carbon and oxygen
c)
metals and nonmentals
d)
hydrogen and chlorine
37.
If an atom gains two electrons what charge will it have?
a)
-2
b)
-1
c)
+1
d)
+2
38.
How many valence electrons does oxygen have?
a)
2
b)
4
c)
5
d)
6
39.
What atom matches this electron configuration?
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
40.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
41.
The number of _____ is most important in determining how an atoms will bond. 
a)
Neutrons
b)
Protons
c)
Valence Electrons
d)
Electron sin the innermost shell
42.
If an oxygen atom has 8 protons (+) and 10 electrons (-), what is it's charge?
a)
O10-
b)
O8+
c)
O2-
d)
O10+
43.
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
44.
A substance which has a high melting point, conducts electricity when dissolved in water, and has a crystalline structure probably has what type of bond?
a)
Ionic
b)
Metallic
c)
Covalent
d)
Crystalline
45.

Bonds formed by transferring electrons from one atom to another are

a)

ionic

b)

metallic

c)

non polar covalent

d)

covalent

46.

Bonds formed by sharing electrons between atoms are

a)

ionic

b)

metallic

c)

covalent

d)

dipole-dipole

47.

A compound forms between a metal and a nonmetal. It is

a)

ionic

b)

metallic

c)

covalent

48.
a)
12
b)
7
c)
8
d)
14
49.

If a potassium atom lost one electron, what would be the symbol for that ion?

a)
b)
c)
d)
50.

Which atoms do not bond?

a)

Noble gases

b)

Alkali Earth Metals

c)

Alkaline Earth Metals

d)

Halogens

51.
What happens when the sodium atom loses an electron?
a)
It become negatively charged 
b)
It become positively charged
c)
none
52.

How many valence electrons does Oxygen (O) have?

a)

6

b)

8

c)

15

d)

16

53.
If a potassium atom loses one electron, the result will be a(an)...
a)
cation
b)
anion
c)
covalent bond
d)
beta decay
54.
Beryllium will ____ valence electrons when forming an ionic bond.
a)
lose 4
b)
gain 4
c)
lose 2
d)
gain 2
55.
Nitrogen will ____ valence electrons when forming an ionic bond.
a)
gain 1
b)
lose 1
c)
gain 3
d)
lose 3
56.

Check all that characterizes an ionic compound.

a)

Hard

b)

non-conductor of heat and electricity

c)

High melting and boiling points

d)

non-soluble in water

57.

The octet rules states that most elements want to have _____ valence electrons.

a)

2

b)

4

c)

6

d)

8

58.
If an atom gains two electrons what charge will it have?
a)
-2
b)
-1
c)
+1
d)
+2
59.
If an atom loses two electrons what charge will it have?
a)
-2
b)
-1
c)
+1
d)
+2

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