Multiple choice

Point out the incorrect statement

I. Neutrons have about the same mass as protons but no electric change

II. Neutrons occur in the nuclei of all atoms

III. Neutrons and protons affect the chemistry of an atom

IV. Neutrons and electrons affect the chemistry of an atom

  1. I & II

  2. II & III

  3. III & IV

  4. I & IV
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Neutrons have nearly the same mass as protons but no electric charge (I is correct). Neutrons occur in ALL atomic nuclei except protium (II is correct). Protons and neutrons determine the nucleus, but only electrons participate in chemical bonding (III is incorrect, IV is also incorrect - neutrons do not affect chemistry).

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