Chem 8.8 The Group 7 elements

Question 1

What is the other name for the Group 7 elements?

Answer 1

Halogens

Question 2

What are the elements in Group 7?

Answer 2

Fluorine
Chlorine
Bromine
Iodine
Astatine

Question 3

What are the properties of Group 7 elements?

Answer 3

They are non-metals
They exist as molecules
They are poor conductors of heat
They do not conduct electricity

Question 4

What is the trend in the appearance of Group 7 elements?

Answer 4

As you down the group, the elements’ colours get darker.

Question 5

What is the colour of Fluorine?

Answer 5

Yellow

Question 6

What is the colour of Chlorine?

Answer 6

Green

Question 7

What is the colour of Bromine?

Answer 7

Red/Brown

Question 8

What is the colour of Iodine?

Answer 8

Grey

Question 9

What is the state of Fluorine & Chlorine @ RTP?

Answer 9

Gas

Question 10

What is the state of Bromine @ RTP?

Answer 10

Liquid

Question 11

What is the state of Iodine @ RTP?

Answer 11

Solid

Question 12

What are the vapour colours of F2, Cl2, and Br2?

Answer 12

Same as their normal colours.

Question 13

What is the vapour colour of Iodine?

Answer 13

Purple

Question 14

What is the trend in the melting and boiling points of Group 7 elements?

Answer 14

As you go down the group, melting and boiling points increase.

Question 15

What is the pattern in the electronic configuration for Group 7 elements?

Answer 15

The last shell contains 7 electrons.

Question 16

What is the trend in the reactivity of Group 7 elements?

Answer 16

As you go down the group, reactivity decreases.

Question 17

If you react a Group 7 element (non-metal) with iron (any metal), what is the product?

Answer 17

A metal halide

Question 18

Iron + Bromine → ?

Answer 18

Iron bromide