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What does an atom's atomic number tell you?
A
Which element the atom is.
B
The number of electrons in the atom.
C
The number of neutrons in the atom.
D
The total number of protons and neutrons.
Card 1 of 20
4.1.2 Mass number, atomic number and isotopes Flashcards
20 flashcards on AQA GCSE Physics 4.1.2 Mass number, atomic number and isotopes: the key terms, definitions and equations you need to recall for Paper 1 and Paper 2.