Bonding

Question 1

Describe Ionic Bonding

Answer 1

An electrostatic attraction between oppositly charged ions

Question 2

What does the strength of an ionic bond depend on

Answer 2

Charge of ion ( > = stronger)
Size of ion ( < = stronger)

Question 3

Show ionic bonding

Answer 3

(Na) + (……..cl) -

Question 4

Name 3 properties of ionic compounds

Answer 4

Exist as regular arrangements of ions in giant ionic lattice

High mp and BP

Conduct electricity when molten or dissolved

Question 5

Define covalent bonding

Answer 5

Shared pairs of electrons with electrostatic attraction between the 2 nuclear and shared pair of electrons

Question 6

Check how you draw them

Question 7

What is the bond angle and name of methane shape

Answer 7

109.5
Tetrahedral

Question 8

Why is methane tetrahedral

Answer 8

Each bond repels eachother equally

Question 9

What is a coordinate dative bond

Answer 9

Where both electrons in a covalent bond are in the same atom

Question 10

Name 3 properties of covalent bonds

Answer 10

Simple- low mp and BP
Compounds- high mp and BP
Don’t conduct electricity

Question 11

What is metallic bonding

Answer 11

Electrostatic force of attraction between a giant lattice of positively charges metal ions and delocalised electrons

Question 12

Name 2 properties of metals

Answer 12

Strong electrostatic forces of attraction resulting in metals having high BP and mp temps

Delcoalised electrons conduct electricity in solid state