Isotopes 2

Physics: Edexcel IGCSE, topic 7.1.9

Isotopes

Two atoms with the same number of protons but a different number of neutrons are said to be isotopes.

Isotopes

Isotopes

  • Isotopes are forms of an element that have the same number of protons, but a different number of neutrons.
Nuclides

Nuclides

  • A nuclide is a type of isotope.
  • A nuclide refers to a specific nucleus that contains a certain number of protons and neutrons.
  • A carbon nuclide with 6 protons and 6 neutrons is different to a carbon nuclide with 6 protons and 7 neutrons. However, both are isotopes of carbon.

Test yourself on Isotopes 2

  • Which of these are true of atoms?

  • What is the defining feature of isotopes of the same element?

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