The Periodic Table

Question 1

What are group 1 elements called?

Answer 1

Alkali metals

Question 2

What are group 7 elements called?

Answer 2

The Halogens

Question 3

What are group 0 elements called?

Answer 3

Noble gases

Question 4

Group 1 are more reactive down/up the group

Answer 4

Down

Question 5

Group 7 are more reactive down/up the group

Answer 5

Up

Question 6

Why are group 0 not reactive?

Answer 6

Already have full outershells

Question 7

Are metals on the Left or right side of the periodic table?

Answer 7

Left

Question 8

Why are group 7 more reactive up the group?
What do they want?
It’s easier to do this because…?

Answer 8

Group 7 want to gain and electron (reduction)

Up the group shells and nucleus are closer together = stronger force of attraction = so easier to pull electron in

Question 9

Why are group 1 more reactive down the group?
What do they want?
How is it easier to do this…?

Answer 9

Group 1 want to lose an electron (oxidisation)

Down the group the more shells so the attraction gets weaker

Question 10

What do elements in the same group have in common?

2

Answer 10

Similar chemical properties

Same number of electrons in outer shell

Question 11

What do elements in the same period have in common?

Answer 11

Same number of shells

Question 12

How do you classify a element as metal or non-metal?

Answer 12

Do they conduct electricity as a solid?

Question 13

What happens when lithium (group 1) reacts with water?

Answer 13

Lump of lithium moves slowly around the surface
Fizzing until disappears
Water becomes alkali -> universal indicator = purple

Question 14

What happens when sodium (group 1) is reacted with water?

Answer 14

Sodium fizzes rapidly
Quickly moves around the surface
May ignite
Water becomes alkali -> universal indicator = purple

Question 15

What happens when potassium (group 1) is reacted with water?

Answer 15

Reacts vigorously
Burns with a lilac flame
Sometimes explodes
Water -> alkali = universal indicator -> purple

Question 16

What is the colour and physical state of chlorine at rm temp?

Answer 16

Green

Gas

Question 17

What is the colour and physical state of bromine at rm temp?

Answer 17

Red/brown

Liquid

Question 18

What is the colour and physical state of iodine at rm temp?

Answer 18

Dark grey

Solid

Question 19

Up/Down group 7 the colour of the elements gets darker

Answer 19

Down (atomic number increases - darker colour)

Question 20

The boiling point increases/decreases down the group?

Answer 20

Increases (opposite to reactivity)

Question 21

What is the formula of hydrogen chloride?

Answer 21

HCl

Question 22

What physical state is hydrogen chloride at rm temp?

Answer 22

Gas

Question 23

What happens to hydrogen chloride when its reacted with water?
Name of process
What it creates

Answer 23

Hydrogen chloride dissociates in water
Dissociation = hydrogen chloride dissolves in water splitting up into H+ ions and Cl- ions
This solution of H+ ions and Cl- ions is called hydrochloride acid

Question 24

What makes a solution acidic?

Answer 24

H+ ions

Question 25

Does hydrogen chloride react with methylbenzene?

Answer 25

No

Question 26

Hydrogen chloride is __________ in water because it __________ forming _____ ions.

Answer 26

Acidic Dissociates H+

Question 27

Hydrogen chloride does/doesn't dissociate with methylbenzene meaning it is/isn't acidic because there are/are no H+ ions

Answer 27

Doesn't Isn't Are no

Question 28

What is an experiment to demonstrate a more reactive HALOGEN will displace a less reactive one from a solution of one of its salts?

Answer 28

Add halogen solution to salt solution and wait for colour change (Eg : chlorine water + potassium bromide solution = orange solution formed (Br2))

Question 29

``` Chlorine water(Cl2) + potassium bromide solution(KBr) = ? + ? ```

Answer 29

Potassium chloride + orange solution (Br2) Bromine displaced by chlorine Chlorine more reactive

Question 30

``` Bromine water(Br2) + potassium iodide solution (KI) = ? + ? ```

Answer 30

Potassium bromide + brown solution (I2) Iodine displaced by bromine Bromine more reactive

Question 31

What is a redox reaction?

Answer 31

When oxidation And reduction Both happen

Question 32

Halogen displacement involves oxidation / reduction / both | Meaning it is a ______________ reaction

Answer 32

Both | Redox