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Chemistry
The Halogens + Noble Gases (Section 4)
| Question | Answer |
|---|---|
| Group 7 elements get _______ reactive as they go down the group | less |
| Fluorine is a ______________ gas with a _________ colour | poisonous, yellow |
| Chlorine is a _____________ gas with a __________ colour | poisonous, green |
| Bromine is a poisonous ________ coloured _________ | red, liquid |
| Iodine is a poisonous __________ coloured __________ with _______________ | black, solid, purple vapours |
| All of the Halogens can exist as what type of molecule? | Diatomic molecule |
| How do Group 7 atoms become diatomic molecules? | By making a covalent bond with one other atom (of the same element) |
| Melting and boiling points ___________ as you go down Group 7 | increase |
| Reactivity of atoms ____________ as you go down Group 7 | decreases |
| Why are atoms less reactive as you go down Group 7? | The atom get bigger, meaning the outer shell is further away. This means the attractive force from the nucleus is weaker when trying to attract the extra electron the atom needs |
| What do you do to the name of a Group 7 element when it becomes an ion? | Replace the -ne with -de |
| In a Group 7 displacement reaction, atoms ____________ the group will displace atoms ________________ the group | higher up, lower down |
| All Group 0 elements exist as ___________________ | colourless gases |
| Noble gases don't really react with anything, making them _________ | inert |
| Are noble gases flammable? | No |
| Does the boiling point for noble gases increase or decrease as you go down the group? | Increase |
Created by:
JoeMather
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