Chemistry Revision

Why are the noble gases so unreactive?
Their outer shells are full of electrons.
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What is an exothermic reaction?
A reaction that gives energy to the surroundings.
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What is an endothermic reaction?
A reaction that takes in energy from the surroundings.
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What is ionic bonding?
Elements react together to form compounds by gaining or losing electrons.
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When is a covalent bond formed?
When atoms share electrons.
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Other cards in this set

Card 2

Front

What is an exothermic reaction?

Back

A reaction that gives energy to the surroundings.

Card 3

Front

What is an endothermic reaction?

Back

Preview of the front of card 3

Card 4

Front

What is ionic bonding?

Back

Preview of the front of card 4

Card 5

Front

When is a covalent bond formed?

Back

Preview of the front of card 5

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