Covalent Bonding GCSE Crossword Puzzle (With Answers)

This ten word crossword puzzle is designed to review the key vocabulary found in the covalent bonding topics, and is suitable for GCSE and IGCSE Level students.

Clues and answers are as follows:

• In a covalent bond, a pair of electrons is ____________ between two atoms. [shared]
• A covalently bonded compound that is needed for photosynthesis to take place [Carbon dioxide]
• We do not need to draw the inner _________ in a dot-and-cross diagram [shells]
• This is a type of diagram we can draw to represent covalent bonding. [dot-and-cross]
• Covalent bonding only happens between _____- ________ atoms [non-metal]
• Covalent bonds are ________ [strong]
• A covalently bonded compound that is responsible for all life on Earth [Water]
• A covalently bonded compound that has the formula HCl [hydrogen chloride]
• These are shared between atoms during covalent bonding [electrons]
• After covalent bonding, each atom has a ______ outer shell. [full]

Syllabus references that this resource satisfies (to name but a few):

AQA GCSE Chemistry:

**4.2.1.1 Chemical Trends:Covalent bonding occurs in most non-metallic elements and in compounds of non-metals.
4.2.1.4 Covalent Bonding: When atoms share pairs of electrons, they form covalent bonds. These bonds between atoms are strong
4.2.1.4 Covalent Bonding: The covalent bonds in molecules and giant structures can be represented in the following forms (dot and cross and ball and stick examples given in the specification)

**Edexcel IGCSE Chemistry: **

1.44: Know that a covalent bond is formed between atoms by the sharing of a pair of electrons
1.45: Understand covalent bonds in terms of electrostatic attractions
1.46: Understand how to use dot-and-cross diagrams to represent covalent bonds