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The periodic table

Card 1 of 22

What subatomic particle count decides which element an atom is?

A

The number of nucleons (mass number).

B

The number of protons (atomic number).

C

The number of electrons (electron number).

D

The number of neutrons (neutron number).

Card 1 of 22

The periodic table Flashcards

  1. GCSE
  2. /Combined Science
  3. /The periodic table

22 flashcards on Edexcel GCSE Combined Science The periodic table: the key terms, definitions and equations you need to recall.