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
Q

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

A

The halogens

2
Q

Name all of the elements of group 7

A
Fluorine
Chlorine
Bromine
Iodine
Astatine
3
Q

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

A

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

4
Q

Identify the element: F

A

Fluorine

5
Q

Identify the element: Cl

A

Chlorine

6
Q

Identify the element: Br

A

Bromine

7
Q

Identify the element: I

A

Iodine

8
Q

Identify the element: At

A

Astatine

9
Q

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

A

It increases

10
Q

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

A

They get darker

11
Q

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

A

The elements become less reactive as you move down the group

12
Q

Iron + Fluorine –> ?

A

Iron Fluoride

13
Q

Iron + Chlorine –> ?

A

Iron Chloride

14
Q

Iron + Bromine –> ?

A

Iron Bromide

15
Q

What is a displacement reaction?

A

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

16
Q

Iron Bromide + Fluorine –>

A

Iron Bromide + Fluorine –> Iron Fluoride + Bromine

because fluorine is more reactive than brominde