Properties of Halogens

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14 Terms

1
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What do group 7 elements exist as?

Diatomic molecules

2
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What are diatomic molecules?

Molecules made up of 2 atoms

3
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What's the formula of fluorine?

F2

4
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What's the formula of chlorine?

Cl2

5
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What's the formula of bromine?

Br2

6
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What's the formula of iodine?

I2

7
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What's the colour of fluorine?

Pale yellow.

8
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What's the colour of chlorine?

Green

9
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What's the colour of bromine?

Red-brown

10
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What's the colour of iodine?

Grey

11
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What's the physical state of fluorine at room temp?

Gas

12
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What's the physical state of chlorine at room temp?

Gas

13
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What's the physical state of bromine at room temp?

Liquid

14
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What's the physical state of iodine at room temp?

Solid