Multiple choice

Which of the following statements is/are correct about the characteristics of an atom?

a. Atoms are electrically neutral. b. Nucleus of an atom is positively charged. c. The protons and neutrons in a nucleus rearrange themselves due to emission of y-rays.

  1. a only

  2. b only

  3. c only

  4. a and b

  5. a, b and c
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct answer as both statements are correct. Atoms are electrically neutral because they have equal numbers of protons (positively charged) and electrons (negatively charged). Because neutrons have no charge and protons have positive charge, the overall charge of the nucleus is positive.

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