Topic 6 - Covalent Bonding

Question 1

1.28 - How are covalent bonds formed?

Answer 1

Formed when a pair of electrons is shared between two non-metal atoms, making a strong bond held by strong electrostatic forces of attraction forming a covalent bond.

Question 2

1.29 - What do covalent bonds usually form?

Answer 2

Covalent bonds form molecules which have weak inter-molecular forces between them.

Question 3

1.30 - What are the typical sizes of atoms and small molecules?

Answer 3

10^ -10 m

Question 4

1.31 - How are simple molecules and covalent substances formed?

Answer 4

When the valency of the two elements are the same, this means they have the same amount of electrons to form bonds with to make a complete outer shell.
e.g Hydrogen and Chlorine both needing one electron to complete their outer shell so share a pair of electron.

Question 4

1.31 - How are simple molecules and covalent substances formed?

Answer 4

When the valency of the two elements are the same, this means they have the same amount of electrons to form bonds with to make a complete outer shell.
e.g Hydrogen and Chlorine both needing one electron to complete their outer shell so share a pair of electron.