1.12 -> group 7 & group 0 elements

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7 Terms

1
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what are properties of group 7 elements?

exist as diatomic molecules (do this through covalent bonding), melting/boiling points increase as you go down and reactivity decreases

2
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what are displacement reactions?

a more reactive substance will displace a less reactive substance from its compound

3
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what are properties of noble gases?

exist on their own, unreactive, non flammable, colourless gases, boiling point increases as you go down

4
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what colour are halide salts?

colourless

5
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what colour is bromine water?

orange

6
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what colour is chlorine water?

colourless

7
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what colour is iodine water?

brown