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Atoms and Elements 3
Chlorine is used to keep swimming pools clean using a chemical reaction.

Atoms and Elements 3

This Science quiz is called 'Atoms and Elements 3' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.

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Hydrogen and plutonium are just two examples of elements. Of the 118 known elements, the first 94 occur naturally on Earth. Of these, oxygen is the most abundant element in the Earth's crust (which is handy as we need oxygen to survive!).

Test your knowledge in our third Science quiz on Atoms and Elements.

1.
Which of these substances is an element?
Chlorine
Ice
Methane
Sodium chloride
2.
Which of these metals is a pure element?
Brass
Bronze
Silver
Steel
The others are are all mixtures of two or more elements
3.
Which of these substances is an element?
Air
Fire
Oxygen
Water
4.
The correct chemical symbol for magnesium is .......
Mg
mg
MG
mG
If the symbol has two letters only the first is a capital
5.
When the elements lead and bromine combine together, the name of the substance formed is called .......
Lead bromate
Lead bromide
Lead bromite
Lead bromium
6.
When two elements combine, the name of the compound will end in .......
-ATE
-IDE
-ITE
-IUM
7.
C is the correct chemical symbol for .......
Calcium
Carbon
Chlorine
Cobalt
8.
The smallest part of an element is called .......
A mixture
A molecule
An atom
An ion
9.
An element is a substance that .......
Can be split up by physical methods
Can be split up into simpler parts by a chemical reaction
Is made up of different kinds of atom
Is made up of only one kind of atom
10.
Which of these show a diatomic element?
CO
H₂
He
SO₂
Diatomic = 2 atoms. Element = Single substance
Author:  Sue Davison

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