Quiz Challenge

Isotopes and properties

Unit: 2.3 Isotopes Board: Cambridge International Standard: SL & HL
Subject IGCSE Chemistry
Grade Year 10/11
Questions 10
Time Estimate 30 mins

1 Preview Question

The identity of an element is determined solely by its number of protons, known as the atomic number (Z). Isotopes are atoms of the same element (same Z) but with different numbers of neutrons. An atom of Carbon-12 and an atom of Carbon-14 are isotopes. What is the fundamental difference between them?

  • A They have a different number of protons.
  • B They have a different number of electrons.
  • C They have a different number of neutrons.
  • D They belong to different elements in the periodic table.

*The correct answer is not shown in the preview.

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