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Worksheets

7C Particles - ECAM

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.

What does this picture represent?

a)

A mixture of atoms

b)

A mixture of molecules

c)

Atoms of one element

d)

Molecules of one element

2.

What does this picture represent?

a)

A mixture of atoms

b)

A mixture of molecules

c)

Molecules of one element

d)

Molecules of one compound

3.

What does this picture represent?

a)

A mixture of atoms

b)

A mixture of molecules of elements

c)

Molecules of one element

d)

Molecules of one compound

4.

What does this picture represent?

a)

Atoms of an element

b)

Molecules of elements

c)

Molecules of one element

d)

Molecules of one compound

5.

What does this picture represent?

a)

A mixture of molecules of two compounds

b)

A mixture of molecules of two elements

c)

Molecules of one element

d)

Molecules of one compound

6.

All matter is made of...

a)

energy

b)

atoms

c)

electrons

d)

compounds

7.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
8.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
9.

What does this illustrate?

a)

Elements

b)

Compunds

c)

Mixture of Elements and Compunds

d)

Mixture of Compounds

10.

This picture represents which of the following?

a)

element

b)

compound

c)

mixture

d)

alloy

11.

What is gold (Au)?

a)

element

b)

compound

c)

mixture

d)

alloy

12.

What is sugar (C6H12O6)?

a)

element

b)

compound

c)

mixture

d)

atoms

13.

What is water (H20)?

a)

element

b)

compound

c)

mixture

d)

atoms

14.

This picture represents which of the following?

a)

element

b)

compound

c)

mixture

d)

atoms

15.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
16.

Which of the following is NOT a compound?

a)

HCl

b)

Cl

c)

NaCl

d)

CO2

17.

Elements which are shiny, conduct electricity and heat are called

a)

metal

b)

nonmetal

c)

metalloid

d)

nonexistent

18.

Which group of the periodic table is composed of inert (not reactive) gases with a full outer shell of electrons?

a)

alkali metals

b)

alkaline earth metals

c)

halogens

d)

noble gases

19.

The elements on the right of the staircase are called

a)

metalloids

b)

non-metals

c)

metals

d)

noble gases

20.

Which of the following is Brass - a mixture of copper and zinc?

a)

element

b)

compound

c)

molecules

d)

alloy