1.3 Atomic Bonding

Question 1

What are the properties of covalent bonding?

Answer 1

Covalent bonding is:
* sharing electrons
* between non-metals
* the elctromagnetic attraction between the positive nuclei and the shared pair of electrons
* two types: network & molecular

Question 2

What are the properties of covalent network bonding?

Answer 2

Covalent network bonding has:
* high melting & boiling points
* strong intermolecular bonds
* no conductivity APART FROM GRAPHITE

Question 3

What are the properties of covalent molecular bonding?

Answer 3

Covalent molecular bonding has:
* low melting & boiling points
* weak intermolecular bonds
* no conductivity

Question 4

What are diatomic elements?

Answer 4

Diatomic elements exist naturally as two atoms of the same element covalently bonded.

Question 5

Name the 7 diatomic elements

Answer 5

• H
• N
• O
• F
• Cl
• Br
• I
  All halogens are diatomic

Question 6

What are the properties of ionic bonding?

Answer 6

Ionic bonding is:
* giving and taking electrons
* between metals & non-metals - metals give electrons and non-metals take them
* the electrostatic attraction between positive and negative ions arranged in a lattice