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Structure of the Atom — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
MCQ
The isotopes of an element contain:
  • A
    Same number of neutrons but different number of protons.
  • B
    Same number of neutrons but different number of electrons.
  • C
    Different number of protons as well as different number of neutrons.
  • D
    Different number of neutrons but same number of protons.
✓

Answer

  1. Different number of neutrons but same number of protons.

Explanation:

Isotopes are the atoms of the same element with the same atomic number but different mass numbers. It means that they have the same number of protons and electrons but different number of neutrons.

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