Chemistry - Atoms, Formulae and Equations

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What are elements made up of?
Atoms that are all identical
1 of 7
How are compounds made (atomic explanation)?
from atoms (or charged atoms) of different elements which have been chemically joined together
2 of 7
How are molecules formed?
When two or more atoms join togeter by sharing electrons
3 of 7
Which two groups bond together in a fixed ratio of 1:1?
Group 1 + Group 7 and Group 2 + Group 6
4 of 7
What ratio are elements in group 1 and group 6 bonded in?
2:1
5 of 7
What ratio are elements from group 2 and group 7 bonded in?
1:2
6 of 7
Balance the equation : Mg + O2 -> MgO
2Mg + O2 -> 2MgO
7 of 7

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Card 2

Front

How are compounds made (atomic explanation)?

Back

from atoms (or charged atoms) of different elements which have been chemically joined together

Card 3

Front

How are molecules formed?

Back

Preview of the front of card 3

Card 4

Front

Which two groups bond together in a fixed ratio of 1:1?

Back

Preview of the front of card 4

Card 5

Front

What ratio are elements in group 1 and group 6 bonded in?

Back

Preview of the front of card 5
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