2.1.4 The Elements of Group 7 Flashcards Preview

SHHS - Science - C2.1 The Periodic Table - Year 8 > 2.1.4 The Elements of Group 7 > Flashcards

Flashcards in 2.1.4 The Elements of Group 7 Deck (16)
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1

By what name are the elements of group 7 sometimes called?

The halogens

2

Name all of the elements of group 7

Fluorine
Chlorine
Bromine
Iodine
Astatine

3

Give some of the physical properties of the group 7 elements.

Non metals so:
Low melting/boiling points
Do not conduct electricity
Iodine is brittle

4

Identify the element: F

Fluorine

5

Identify the element: Cl

Chlorine

6

Identify the element: Br

Bromine

7

Identify the element: I

Iodine

8

Identify the element: At

Astatine

9

What happens to the melting point of the group 7 elements as you move down the group?

It increases

10

What happens to the colour of the group 7 elements as you move down the group?

They get darker

11

What happens to the reactivity of the group 7 elements as you move down the group?

The elements become less reactive as you move down the group

12

Iron + Fluorine --> ?

Iron Fluoride

13

Iron + Chlorine --> ?

Iron Chloride

14

Iron + Bromine --> ?

Iron Bromide

15

What is a displacement reaction?

When a more reactive element takes the place of a less reactive element in a compound

16

Iron Bromide + Fluorine -->

Iron Bromide + Fluorine --> Iron Fluoride + Bromine
because fluorine is more reactive than brominde