Topic 3 - 3.3 - Covalent Bonding

Question 1

What is the name for two non-metals sharing electrons?

Answer 1

Covalent Bonding

Question 2

What is a covalent bond?

Answer 2

A covalent bond is a shared pair of electrons between two non-metal atoms.It is the electrostatic force of attraction between the positively charged nuclei of each atom and the negatively charged electrons. (This is what holds the atoms together)

Question 3

What are diatomic molecules/elements?

Answer 3

Diatomic elements are pure elements that form molecules consisting of two atoms bonded together

Question 4

Name all 7 of the diatomic elements

Answer 4

1. Iodine
2. Bromine
3. Chlorine
4. Fluorine
5. Oxygen
6. Nitrogen
7. Hydrogen

Question 5

Explain why covalent molecules have low melting and boiling points

Answer 5

Because the weak intermolecular forces (forces between molecules) only require a small amount of energy to break, which means they’ll break at low temperatures.

Question 6

Why is the force of attraction weak between covalent molecules?

Answer 6

Because of the weak Intermolecular forces