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Atoms and elements

Total questions: 16

Worksheet time: 8mins

Name
Class
Date
1.

What is gold?

a)

element

b)

mixture

c)

compound

2.

If an element does NOT conduct electricity and is NOT shiny or malleable, it is a:

a)

Metal

b)

Gas

c)

Nonmetal

d)

Liquid

3.

A substance that is generally shiny, can be bent, and often conducts heat and electricity is:

a)

Gas

b)

Metal

c)

Nonmetal

d)

Element

4.

All matter is made of what?

a)

energy

b)

electrons

c)

atoms

d)

compounds

5.

These elements are ductile

a)

Metals

b)

Nonmetals

c)

Metalloids

6.

The element symbol for potassium:

a)

P

b)

Pt

c)

Po

d)

K

7.

If there are 94 different kinds of naturally occurring atoms, how many different naturally occurring elements are there?

a)

90 elements

b)

94 elements

c)

24 elements

d)

118 elements

8.

Elements are made of ...... type of atom

a)

one

b)

two

c)

different

9.

...... are particles made of two or more atoms joined together.

a)

atoms

b)

molecules

c)

elements

10.

Sometimes the symbol is the first letter of the English name of the element. For example, the symbol for

a)

Natrium is Na

b)

Oxygen is O

c)

Helium is He

11.

Sometimes the symbol is the first of the English name of the element plus another letter from its name. For example, the symbol for .....

a)

Helium is He

b)

Iron is Fe

c)

Hydrogen is H

12.

Sometimes the symbol is taken from the name of the element in another language. For example, the symbol for ...

a)

Nitrogen is N

b)

Sodium 'Natrium' is Na

c)

Silicon is Si

13.

Name two gases that are found in air

a)

nitrogen and oxygen

b)

silicon and oxygen

c)

calcium and oxygen

d)

aluminium and oxygen

14.

All matter is made up of tiny invisible particles called ....

a)

atoms

b)

elements

c)

molecules

15.

All the atoms in a piece of gold are the same size

a)

True

b)

False

16.

An atom of iron different in size and mass from an atom of sodium

a)

True

b)

False