WBCS.LIVE practice question

Mass of atom is determined by

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Proton + Neutron
  2. Proton + electron
  3. Neutron + Electron
  4. Proton + Neutron + Electron

Correct answer and explanation

Correct answer: Proton + Neutron