1(f) (g) (h)- Bonding (ionic, covalent, metallic)❗️

Question 1

What do ionic bonds form between?

Answer 1

Metals and non metals

Question 2

State the charge on ion for each group of the periodic table.

Answer 2

1: +1
2: 2+
2: 3+
4: rarely form ions
5: 3-
6: 2-
7: 1-
8: don’t form ions

Question 3

What is an intermolecular force?

Answer 3

A weak attraction between 2 molecules

Question 4

Do covalent bonds form between metals or non- metals?

Answer 4

NON METALS ONLY

Question 5

When do covalent bonds form?

Answer 5

Electrostatic force of attraction between the shared pair of electrons and the nuclei of the 2 atoms sharing them

Question 6

What do ions always form?

Answer 6

Ionic lattices

Question 7

Describe the melting points of ionic compounds

Answer 7

High melting and boiling points because of the large amount of energy needed to break the string bonds of the ions

Question 8

Why do you need a high temperature to break ionic bonds?

Answer 8

There are strong electrostatic forces between the oppositely charged ions

Question 9

What is the structure of ionic compounds?

Answer 9

Giant lattice structure

Question 10

What’s the charge on Ag

Answer 10

+

Question 11

What’s the charge on Fe

Answer 11

2+

Question 12

What’s the charge on Pb

Answer 12

2+

Question 13

What’s the charge on Cu

Answer 13

2+

Question 14

What’s the charge on Zn

Answer 14

2+

Question 15

What’s the charge on hydrogen

Answer 15

+

Question 16

What’s the charge on hydroxide OH

Answer 16

-

Question 17

What’s the charge on Ammonium Nh4

Answer 17

+

Question 18

What’s the charge on Carbonate CO3

Answer 18

2-

Question 19

What’s the charge on SO4

Answer 19

2-

Question 20

What’s the charge on nitrate NO3

Answer 20

-

Question 21

Why are metals malleable?

Answer 21

Ions are able to move past eachother within the lattice arrangement

Question 22

What keep ions kept together in a metal?

Answer 22

The sea of delocalised electrons surrounding them

Question 23

Why do metals have high melting and boiling points?

Answer 23

The electrostatic forces of attraction between electrons and ions are very strong

Question 24

How many covalent bonds does each carbon atom form in a diamond?

Answer 24

4

Question 25

Describe the properties of diamond

Answer 25

• High melting point
• hard and strong
• does not conduct electricity
• lattice structure

Question 26

How many covalent bonds does each carbon atom form in graphite?

Answer 26

3

Question 27

Describe the structure of graphite

Answer 27

• very high melting and boiling point
• soft and weak (layers can slide)
• can conduct electricity

Question 28

What kind of substance is C 60 fullerene?

Answer 28

Simple molecular substance

Question 29

Describe the properties of C 60 fullerene?

Answer 29

• large covalent molecules
• soft due to weak intermolecular forces
• weak conductor of electricity

Question 30

Why is C 60 fullerene a weak conductor of electricity?

Answer 30

Has one delocalised electron which cannot flow

Question 31

Do covalent compounds conduct electricity?

Answer 31

No

Question 32

What is metallic bonding?

Answer 32

The attraction between the positive ions and delocalised electrons that keeps the ions together