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IGCSE Glossary

There are 7 entries in this glossary.
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Glossaries

Term Main definition
Acid
Glossaries - GCSE chemistry
Glossaries Description -

A substance with a pH value of less than 7 and which releases hydrogen ions (H+(aq)) when in water. 

Examples of acids are :HCl (hydrochloric acid), H2SO4 (Sulfuric acid), HNO3 (Nitric acid)

Author - David Fowkes
Hits - 255
activation energy
Glossaries - GCSE chemistry
Glossaries Description -

The least possible amount of energy required to start a reaction.

Author - georgie
Hits - 412
aluminium carbonate
Glossaries - GCSE chemistry
Glossaries Description -

aluminium carbonate

Author - David Fowkes
Hits - 355
ammonium sulfate
Glossaries - GCSE chemistry
Glossaries Description -

ammonium sulfate

Author - David Fowkes
Hits - 359
anode
Glossaries - GCSE chemistry
Glossaries Description -

the positive electrode in an electrolysis circuit

Author - David Fowkes
Hits - 472
atom
Glossaries - GCSE chemistry
Glossaries Description -

atom2

 

The smallest particle of an element which still retains all the properties of the element

 

Author - David Fowkes
Hits - 1223
Atomic number
Glossaries - GCSE chemistry
Glossaries Description -

The number of protons in the nucleus of an atom. Also known as the proton number

atomic number

Author - David Fowkes
Hits - 1089
Synonyms - Proton number