THE STABILITY OF ISOTOPES
1 mark · EasyState what the atomic number (Z) of an atom tells you about its nucleus.
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The atomic number tells you the number of protons in the nucleus.
Also accept: It tells you the number of protons in the nucleus
Common mistakes: It tells you the number of neutrons; It tells you the mass of the atom
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B1 · 1 mark · States the atomic number is the number of protons in the nucleus
Worked solution
The atomic number (Z) tells us the number of protons in the nucleus of an atom.