MEDIUM
MYP:4-5
IMPORTANT
Earn 100

Use Lewis symbols and structures to explain the formation of the following covalently bonded compound.

Phosphorus pentachloride

Important Questions on Models

MEDIUM
MYP:4-5
IMPORTANT

Use Lewis symbols and structures to explain the formation of the following covalently bonded compound.

Oxygen difluoride

MEDIUM
MYP:4-5
IMPORTANT

Use Lewis symbols and structures to explain the formation of the following covalently bonded compound.

Carbon dioxide

MEDIUM
MYP:4-5
IMPORTANT

Consider the compounds in given below. Can you make the distinction between electrons involved directly in bonding and lone pairs of electrons not required for the formation of the covalent bond? Which molecules have lone pairs of electrons and how many?

a) Methane b) Hydrogen bromide c) Phosphorus pentachloride d) Oxygen difluoride e) Carbon dioxide

MEDIUM
MYP:4-5
IMPORTANT

Outline the difference between ionic, covalent and metallic bonding focusing on the following: electrical conductivity as a solid.

MEDIUM
MYP:4-5
IMPORTANT

Outline the difference between ionic, covalent and metallic bonding focusing on the following: Melting point.

MEDIUM
MYP:4-5
IMPORTANT

Outline the difference between ionic, covalent and metallic bonding focusing on the following: Solubility in water.

MEDIUM
MYP:4-5
IMPORTANT

Draw a diagram of metallic bonding and use this to explain the following physical property of a metal:

Electrical conductivity

MEDIUM
MYP:4-5
IMPORTANT

Draw a diagram of metallic bonding and use this to explain the following physical properties of a metal:

Malleability