PERIODIC TABLE

Question 1

Alkali metals are:

Answer 1

Very reactive
Low melting points
soft and can be cut by a knife

Question 2

Alkali metal properties

Answer 2

One electron in their outer shell

need to LOSE one electron to get the stable electronic structure of a NOBLE GAS

Question 3

Reactivity series

Answer 3

1. Larger as you go down
2. Electrostatic attraction w nucleus gets WEAKER because the distance between the OUTER ELECTRON and nucleus increases.
3. outer electron experiences a shielding effect from the inner electrons

Question 4

What happens when you react lithium, sodium and potassium with water

Answer 4

The metal floats, moves around and fizzes. REACTS VIGOROUSLY!!

Question 5

Another name for group 7

Answer 5

Halogens

Question 6

Halogens have :

Answer 6

Low melting points
Boiling points
WHICH INCREASE DOWN THE GROUP
Poor conductors of heat and electricity

Question 7

At room temperature what substance and colour is CHLORINE

Answer 7

Yellow/green gas

Question 8

At room temperature what substance and colour is BROMINE

Answer 8

Red/ brown liquid

Question 9

At room temperature what substance and colour is IODINE

Answer 9

Grey solid

Question 10

Halogens electronic configuration

Answer 10

7 electrons in outer shell

Gain 1 electron to become stable, noble gas

Question 11

Halogen reacting with a metal

Answer 11

Gains a single electron to become STABLE

Forms an IONIC compound

Question 12

Halogen reacting with hydrogen

Answer 12

Forms HYDROGEN HALIDES

The reaction becomes LESS reactive as you go down the group.

Question 13

OIL RIG

Answer 13

Oxidation
Is
Loss

Reduction
Is
Gain

Question 14

Test for chlorine

Answer 14

When DAMP litmus paper is put into chlorine gas, the litmus paper is bleached and turns WHITE

Question 15

What is the name for group 0

Answer 15

The noble gases

Question 16

Noble gases are:

Answer 16

Unreactive
Have 8 electrons in there outer shell apart from helium which has 2
Boiling point increases as you go DOWN the group