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279

Q:

An atom is __.

  • 1
    The smallest known particle of matter
  • 2
    The smallest particle of a gas
  • 3
    The smallest indivisible particle of an element that can participate in a chemical change
  • 4
    A charged particle
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Answer : 3. "The smallest indivisible particle of an element that can participate in a chemical change"
Explanation :

An atom is made up of three particles, namely neutron, proton and electron. Hydrogen has no neutrons. Every atom has a nucleus that binds one or more electrons around itself.

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