Group 1 and 7 Flashcards Preview

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Flashcards in Group 1 and 7 Deck (11)
1

What do group 7 atoms form when they react with metals?

A wide range of salts

2

Which of the group 7 atoms form diatomic molecules?

All of them

3

How do the melting and boiling points change as you go down the group?

They increase

4

How does the reactivity of the atoms change as you go down the group?

It decreases as you go down

5

What colour and state is fluorine at RT?

A gas
Yellow

6

What state and colour is chlorine at RT?

Gas
Green

7

What state and colour is bromine at RT?

Liquid
Dark red liquid/reddy-brown vapour

8

What state and colour is iodine at RT?

Solid
Dark grey solid/purple vapour

9

When halogens react with iron, what is formed?

Metal halides

10

Chlorine + sodium bromide →?

Sodium chloride + bromine (displacement)

11

What causes the colour change when two solutions interact?

The displaced element