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Structure and Bonding

Total questions: 25

Worksheet time: 16mins

Name
Class
Date
1.
Giant lattice structure held together by attraction between  positive and negatively charged ions 
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent 
2.
Elements such as  Silicon, diamond and graphite.  Compounds include  SiO2
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent 
3.
Melting points are very high – a large amount of energy is needed to break all the covalent bonds
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent 
4.

Conducts electricity due to delocalised electrons

a)

simple covalent molecules

b)

metallic

c)

ionic

d)

giant covalent

5.
Melting points are generally high – lots of energy is needed to overcome the attractions between positive ions and delocalised electrons.  
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent 
6.
Compounds containing a metal and non-metal.
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent 
7.
Covalent compounds
a)
Share electrons
b)
transfer electrons
c)
contain a sea of electrons
d)
conduct electricity
8.
Which of these is covalent?
a)
NaCl
b)
Pb(NO3)2
c)
CO2
d)
AlCl3
9.
Which elements tend to lose electrons?
a)
metals
b)
nonmetals
10.
When an atom loses an electron, it becomes a:
a)
positive ion
b)
negative ion
c)
neutral ion
d)
neutral atom
11.
In metals, the _______ electrons form a shared sea of electrons.
a)
Metallic
b)
Inner
c)
Outer
d)
Ionic
12.
Atoms form ions in order to become
a)
isotopes
b)
stable
c)
metals
d)
nonmetals
13.

Many alloys are softer than the elements that are in them.

a)

True

b)

False

14.

Why are alloyed metals usually stronger?

a)

They have atoms of different metals in them, which makes it easier for the layer to move past each other...less likely to break

b)

They have atoms of different metals in them, which makes it harder for the layer to move past each other...less likely to break

15.

Predict the bond between Mg and Cl

a)

covalent

b)

ionic

c)

metallic

d)

none of the above

16.

What happens when magnesium loses 2 electrons?

a)

It stabilizes to a net charge of 0

b)

It turns into an atom

c)

It becomes negatively charged

d)

It becomes positively charged

17.

What category of element usually forms a positive ion?

a)

Metals

b)

Nonmetals

c)

metalloids

d)

Noble gases

18.

CaCl2 is an example of what type of bond?

a)

Covalent

b)

Metallic

c)

Ionic

19.
An ionic bond forms when atoms ___________ electrons.
a)
gain
b)
share
c)
increase
d)
transfer
20.
What type of bond forms between two or more atoms that are charged (+/-)?
a)
Covalent bond
b)
Incomplete bond
c)
Ionic bond
d)
Metallic bond
21.
Which of the following is an example of a COVALENT COMPOUND?
a)
H2S
b)
KI
c)
CaCl2
d)
MgO
22.
Which of the following is an example of an IONIC COMPOUND?
a)
NaCl
b)
H2O
c)
CO2
d)
NO
23.
According to the diagram below, how many bonds will this atom need to make to be stable?
a)
1
b)
2
c)
3
d)
4
24.

This word means electrons are free to move

a)

Distant

b)

Delocalised

c)

Displaced

d)

Defrauded

25.

Ionic compounds conduct electricity when solid.

a)

True

b)

False

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