Card 1 of 22
What subatomic particle count decides which element an atom is?
A
The number of electrons (electron number).
B
The number of nucleons (mass number).
C
The number of protons (atomic number).
D
The number of neutrons (neutron number).
Card 1 of 22
The periodic table Flashcards
22 flashcards on Edexcel GCSE Combined Science The periodic table: the key terms, definitions and equations you need to recall.