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Bonding and Structure

Total questions: 50

Worksheet time: 32mins

Name
Class
Date
1.

How many VALENCE ELECTRONS does Chlorine have?

a)

2

b)

7

c)

8

d)

10

e)

17

2.

Ionic bonds are formed when electrons get

a)

Shared between two atoms

b)

Removed from both atoms

c)

Transferred from one atom to another

d)

Added to both atoms

3.

Ionic bonds typically form between

a)

A metal and a nonmetal

b)

Two nonmetals

c)

Two metals

d)

A metalloid and a metal

4.

What is the correct formula for Sodium Chloride?

a)

SCl

b)

NaCl

c)

SC

d)

NaCl2

5.

Name this ionic compound: Al2O3

a)

Dialuminum oxide

b)

Aluminum oxygen

c)

Oxygen Aluminide

d)

Aluminum oxide

6.

Write the chemical formula for K and Br (potassium bromide).

a)

KBr

b)

K2Br

c)

KBr3

d)

KBr2

7.

Write the chemical formula for Na and S (sodium sulfide).

a)

NaS

b)

S2S2

c)

Na2S

d)

NaS2

8.

Metals (like Na) typically _____ electrons in the formation of ionic bonds.

a)

Gain

b)

Lose

c)

Keep the same

9.

Nonmetals (like Cl) typically ____ electrons when they form ionic bonds.

a)

Gain

b)

Lose

c)

Keep the same

10.

Magnesium Hydroxide is an ionic compound made up from Mg2+ and OH- ions. Which is its correct formula?

a)

MgOH

b)

MgOH2

c)

Mg(OH)2

d)

MgO

11.
What structure is shown in the diagram?
a)
Diamond
b)
Graphite
c)
Carbon fiber
d)
Carbon nanotubes
12.

How many bonds will a C atom form?

a)

1

b)

2

c)

3

d)

4

13.
What is the kind of bond between two non metals called?
a)
Ionic
b)
Covalent
c)
Lattice
d)
Metallic
14.

Which has weak intermolecular forces in between layers?

a)

graphite

b)

diamond

c)

fullerene

d)

none of these

15.
Which has every carbon atom covalently bonded to four other atoms?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
16.
Conduct electricity
a)
diamond
b)
graphite
c)
both
17.

Each carbon atom joined to three other carbon atoms -

a)

diamond

b)

graphite

c)

both

18.

Which of these allotropes have high melting point?

a)

diamond

b)

graphite

c)

both

19.
Atoms arranged in layers
a)
diamond
b)
graphite
20.

Which of these is used as a lubricant?

a)

diamond

b)

graphite

21.

Which of this is used in drill bits?

a)

diamond

b)

graphite

c)

SiO2

22.

_____ can conduct electricity because it has _____ _____

a)

diamond

b)

graphite

c)

localised electrons

d)

delocalised electrons

23.

Graphite is soft because

a)

it has strong covalent bonds

b)

its layers can slide over one another due to weak forces between the layers

c)

it has weak van der Waals forces between layers

d)

it is used as a lubricant

24.

Diamond is used for cutting glass because it is

a)

hard and strong

b)

soft

c)

shiny

d)

unreactive

25.

Why is diamond hard and strong? It has

a)

weak intermolecular forces

b)

weak covalent bonds

c)

strong covalent bonds

d)

van der Waals forces of attraction

26.
What is the basis of a metallic bond?
a)
the attraction of neutral metal atoms.
b)
the attraction between protons and neutrons.
c)
the attraction between positive metal ions and interlocking electrons.
d)
the attraction between positive metal ions and free floating electrons.
27.
There are more metals than non metals in the periodic table.
a)
True
b)
False
28.
At room temperature, most metals are
a)
liquid
b)
solid
c)
gas
d)
an alloy
29.
What does malleable mean?
a)
able to be shaped
b)
will break easily
c)
can be used for wire
d)
is shiny
30.
Which of these is NOT an alloy?
a)
bronze
b)
copper
c)
brass
d)
stainless steel
31.

What is the ability of a substance to be pulled into a wire?

a)

Malleability

b)

Ductility

c)

Conductivity

d)

Solubility

32.
Why do metals conduct
a)
They are shiny
b)
The electrons are held tightly within the lattice
c)
The electrons are delocalised and able to move
d)
The electrons are shared between two metal ions
33.
A mixture of two or more metals is called:
a)
mixture
b)
solution
c)
compound
d)
alloy
34.

Which of these are considered properties of metals? (choose ALL that apply)

a)

brittleness

b)

low melting point

c)

luster (shininess)

d)

malleability

e)

ductility

35.
Why are alloys generally used to make everyday objects?
a)
Alloys are often stronger and less active than pure metals.
b)
Alloys have higher melting point than pure metals.
c)
Alloys are less expensive to produce than pure metals.
d)
Alloys have ionic bonds instead of metallic bonds.
36.
Elements on the LEFT side of the periodic table will most likely form:
a)
Positive ions
b)
Negative ions
c)
Neutral Ions
d)
None of these
37.
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
38.
What is the formula of Sodium oxide?
a)
Na2O
b)
NaO2
c)
Na2O2
d)
Na2O
39.

What is the name of the compound with the chemical formula CrCl3 ?

a)

chromium (III) chlorate

b)

chromium trichloride

c)

chromium(II) chloride

d)

chromium(III) chloride

40.

What is the correct chemical formula for sodium sulfate?

a)

NaSO4

b)

Na2SO4

c)

Na(SO4)2

d)

Na2(SO4)2

41.

Which of the following pairs of elements would NOT react to form an IONIC compound?

a)

sulfur and phosphorus

b)

sodium and iodine

c)

iron and oxygen

d)

aluminum and bromine

42.

How are compounds with metallic bonds similar to ionic compounds?

a)

Both tend to have double and triple bonds.

b)

Both tend to have low boiling point

c)

Both tend to have poor conductivity.

d)

Both tend to have high melting points.

43.

Which of the following would have the lowest melting point?

a)

MgCl2

b)

Al2O3

c)

CO2

d)

AlP

44.

Nonmetals tend to form ions by

a)

destroying electrons

b)

gaining electrons

c)

losing electrons

d)

sharing electrons

45.

What is the correct formula for Sodium Chloride?

a)

SCl

b)

NaCl

c)

SC

d)

NaCl2

46.

Magnesium Hydroxide is an ionic compound made up from Mg2+ and OH- ions. Which is its correct formula?

a)

MgOH

b)

MgOH2

c)

Mg(OH)2

d)

MgO

47.

In the compound CoSO4, what is the charge on cobalt?

a)

+4

b)

+2

c)

-2

d)

-1

48.
Ionic bonds form between two ions that have...
a)
ionic compounds
b)
negative charges
c)
positive charges
d)
opposite charges
49.
Which is most likely to form a negative ion...
a)

an element from Group 7

b)
a metal
c)
an element from Group 1
d)
an element with atoms that have eight valence electrons
50.

Why do ionic compounds NOT conduct electricity when they are in their solid state?

a)

Their ions are free to move.

b)

Their ions are held in fixed positions.

c)

Their electrons are free to move

d)

Their electrons are held in a fixed state

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