Atoms are Composed of-

  1. Electrons and protons
  2. Electrons only
  3. Protons only
  4. Electrons and nuclei
Monis Rasool Professor Asked on 29th June 2015 in Physics.
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    Answer: 4. Electrons and nuclei;
    An atom is the smallest constituent unit of ordinary matter, it is consists of a nuclei (it is consist of protons and neutrons) and electrons, electrons bound the nucleus. the atomic nucleus was discovered in 1911 by Ernest Rutherford based on the 1909 Geiger- Mars den gold foil experiment. The protons have a positive electric charge , electrons have negative electric charge, and the neutrons have no electric charge.

    vijay Professor Answered on 12th July 2015.
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    4. ELECTRONS AND NUCLEI

    rayeeskausar Newbie Answered on 12th July 2015.
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