WorksheetsBonding and Structures (separate chem)
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.
Sand, diamond and graphite
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent
3.
Low melting and boiling points which increase with increasing molecule size due to increased intermolecular forces.
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent
4.
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
5.
Lattice structure in which all atoms are joined to others by covalent bonds
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent
6.
Conductors due to delocalised electrons
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent
7.
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
8.
Formulae of these might include H2O
each molecule contains 1 O and 2H atoms
each molecule contains 1 O and 2H atoms
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent
9.
Compounds containing a metal and non-metal.
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent
10.
Ionic Bonding involves...
a)
The transfer of protons
b)
The transfer of nuetrons
c)
The transfer of electrons
d)
None Of the above
11.
Covalent compounds
a)
Share electrons
b)
transfer electrons
c)
contain a sea of electrons
d)
conduct electricity
12.
Predict the bond that will form between Sr and S.
a)
Ionic
b)
Covalent
13.
Which of these is covalent?
a)
NaCl
b)
Pb(NO3)2
c)
CO2
d)
AlCl3
14.
Which elements tend to lose electrons?
a)
metals
b)
nonmetals
15.
When an atom loses an electron, it becomes a:
a)
positive ion
b)
negative ion
c)
neutral ion
d)
neutral atom
16.
In metals, the _______ electrons form a shared sea of electrons.
a)
Metallic
b)
Inner
c)
Outer
d)
Ionic
17.
Atoms form ions in order to become
a)
isotopes
b)
stable
c)
metals
d)
nonmetals
18.
What's a scientific model?
a)
A description of a thing that explains most aspects of the thing
b)
A smaller version of something
c)
A theory that completely explains a thing
d)
A mathematical version of a process
19.
What's a key characteristic of simple molecules?
a)
Low melting/boiling points
b)
Weak intramolecular bonds
c)
Weak intermolecular bonds
d)
Insoluble
20.
What is the upper size limit for a nanoparticle?
a)
100 nm
b)
10 nm
c)
1000 nm
d)
1 nm
21.
Which of these products contains nanoparticles?
a)
Suncream
b)
Instant coffee
c)
Party balloons
d)
Cat food
22.
Which of these conduct electicity
a)
Graphite
b)
Metallic structures
c)
molten ionic compounds
d)
simple covalent molecules
e)
Diamond
23.
Which of these conduct electicity using delocalised electrons
a)
Graphite
b)
Metallic structures
c)
molten ionic compounds
d)
simple covalent molecules
e)
Diamond
24.
Which two elements is in the compound NaCl2?
a)
Carbon and Nitrogen
b)
Sodium and Chlorine
c)
Sodium and Carbon
d)
Nitrogen and Chlorine
25.
Potassium is a
a)
Metal
b)
Nonmetal
100 %
