BRAINCAKEIsotopes
Isotopes are atoms of the same element with the same number of protons but different numbers of neutrons.
Most elements have more than one isotope.
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Key terms in this lesson
- Atomic number
- The number of protons in the nucleus of an atom.
- Mass number
- The number of protons and neutrons in the nucleus of an atom.
More in Atoms, Ions and Compounds
- The Nuclear Atom.
- Atomic Number
- Ions
- Carbon-12
- Relative Isotopic Mass
- Relative Atomic Mass
- The Mass Spectrometer
- Calculating Relative Atomic Mass
All 17 lessons in Atoms, Ions and Compounds · All OCR AS-level Chemistry topics