Question : An atom is _________.
Option 1: the smallest particle of matter known
Option 2: the smallest particle of gas
Option 3: the smallest indivisible particle of an element that can take part in a chemical change
Option 4: charged particle
Correct Answer: the smallest indivisible particle of an element that can take part in a chemical change
Solution : The correct option is the smallest indivisible particle of an element that can take part in a chemical change.
An atom is the smallest unit of matter, with a nucleus at its centre made up of positively charged protons and uncharged neutrons that are orbited by negatively charged electrons.
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