C4 - The Group 7 Elements

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Why do group 7 elements have similar properties?
Because they each have 7 electrons in their outer shell. This means when they react each atom gains one electrons to form a negative ion with a stable electronic structure
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How can we predict the properties of halogens knowing the properties of other halogens?
This is because the properties show trends.
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How makes a halogen more reactive?
By the nearer the outer shell is to the nucleus, the easier it is for an atom to gain one electron which makes it more reactive
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What happens when a halogen reacts with an alkali metal?
A metal halide is made
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What are the two possible outcomes if halogens are bubbled through solutions of metal halides?
No reaction or a displacement reaction
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What is increased of the halogen if it is higher up the group?
The reactivity
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What is reduction?
When electrons are gained
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Card 2

Front

How can we predict the properties of halogens knowing the properties of other halogens?

Back

This is because the properties show trends.

Card 3

Front

How makes a halogen more reactive?

Back

Preview of the front of card 3

Card 4

Front

What happens when a halogen reacts with an alkali metal?

Back

Preview of the front of card 4

Card 5

Front

What are the two possible outcomes if halogens are bubbled through solutions of metal halides?

Back

Preview of the front of card 5
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