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Year 8 Chemistry - Properties

Total questions: 40

Worksheet time: 26mins

Name
Class
Date
1.
What is the chemical symbol for the element hydrogen
a)
H
b)
He
c)
h
d)
he
2.
What is the chemical symbol for the element Silicon
a)
S
b)
Si
c)
si
d)
Sl
3.
What is the chemical symbol for the element copper?
a)
co
b)
c
c)
Cu
d)
cu
4.
What is the chemical symbol for the element Nitrogen
a)
Ni
b)
N
c)
No
d)
Nb
5.
What is the chemical symbol for the element Chlorine
a)
C
b)
Cl
c)
cl
d)
Ch
6.
What is the chemical symbol for the element Zinc
a)
Z
b)
Zn
c)
Zr
d)
zn
7.
Which part of an atom is POSITIVELY charged?
a)
protons
b)
neutrons
c)
electrons
d)
atoms
8.
What part of an atom is NEGATIVELY charged?
a)
protons
b)
neutrons
c)
electrons
d)
atoms
9.

what is an atom

a)

smallest part of the universe

b)

smallest part of a substance

c)

smallest part of anything

d)

smallest part of water

10.
Water is an element?
a)
true
b)
false
11.
Anything that takes up space and has mass is known as _______________.
a)
Matter
b)
Molecules
c)
Compounds
d)
Stuff
12.

An electron is smaller than an atom.

a)

True

b)

False

c)

Whic

13.

An atom's atomic number will tell you how many protons and electrons it has.

a)

True

b)

False

14.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
15.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
16.
Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –
a)
a gas at room temperature.
b)
made of two different elements.
c)
given off by green plants.
d)
useful to human beings.
17.
How many protons does this atom have?
a)
2.5
b)
6
c)
5
d)
10.811
18.
What part of the atom is the arrow pointing to?
a)
nucleus
b)
proton
c)
electron shell
d)
electron
19.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
20.
A combination of substances that are not chemically combined is called a(n)____________. 
a)
mixture
b)
compound
c)
physical
21.
An element is made up of only one kind of _____.
a)
isotope
b)
plastic
c)
atom
d)
metal
22.
What subatomic particles would you find in the nucleus of an atom?
a)
Protons only
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons and Electrons 
23.
What subatomic particle(s) would be found orbiting the nucleus?
a)
Neutrons only
b)
Electrons only
c)
Protons and Neutrons
d)
Protons and Electrons
24.

What is MATTER?

a)

Anything that has MASS

b)

Anything that takes up SPACE

c)

Anything that has MASS and takes up SPACE

d)

Anything that DOES NOT have mass or take up space

25.

All matter is made up of tiny _______________

a)

energy

b)

particles (atoms and molecules)

c)

bits

d)

antimatter

26.

The number of electrons is usually the same as the number of protons.

a)

True

b)

False

c)

Only Abraham knows...

27.

What can you do to find the number of neutrons in an atom?

a)

It's the same as the atomic #.

b)

Ask Sierra!

c)

Subtract the atomic # (protons) from the mass # (protons and neutrons)

d)

Multiply the mass # (protons and neutrons) and the atomic # (protons)

28.

Carbon has how many protons?

a)

12

b)

6

c)

7

d)

4

29.

Bromine has how many Neutrons?

a)

35

b)

80

c)

45

d)

8

30.

How many protons are in Gold

a)

79

b)

197

c)

118

d)

276

31.

If Hydrogen has an atomic number of 1 and a mass unit of 1 How many protons does it have?

a)

1

b)

2

c)

3

d)

4

32.

If Helium has an atomic number of 2 and an atomic mass of 4. How many protons does it have?

a)

1

b)

2

c)

3

d)

4

33.
Which of the following is NOT a characteristic of most metals?
a)
Brittle
b)
Good conductor
c)
Ductile
d)
Malleable
34.
Most __________ conduct electricity very well.
a)
types of glass
b)
plastics
c)
metals
d)
types of rubber
35.

When a metal is shiny, we say it is ___________.

a)

lustrous

b)

malleable

c)

ductile

d)

conductive

36.

When a metal can be pounded into thin sheets, we say it is ___________.

a)

lustrous

b)

malleable

c)

ductile

d)

conductive

37.

When a metal can be made into thin wires, we say it is ___________.

a)

lustrous

b)

malleable

c)

ductile

d)

conductive

38.

When a metal can allow heat or electricity to flow through it, we say it is ___________.

a)

lustrous

b)

malleable

c)

ductile

d)

conductive

39.

Which of the following materials would make a good conductor of heat and electricity? (Choose all that apply.)

a)

pots and pans

b)

rubber tubing

c)

copper wires

d)

iron nails

e)

a plastic handle

40.

Which of the following materials would make a good insulator? (Choose all that apply.)

a)

a cotton oven mitt

b)

rubber tubing

c)

copper wires

d)

iron nails

e)

a plastic handle

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