chemistry NEW topic one revision Flashcards
1
Q
mass number?
A
the number of protons and neutrons in the nucleus
2
Q
atomic number?
A
number of protons in an atom, no of protons= no of electrons
3
Q
A
mass number?
the number of protons and neutrons in the nucleus
atomic number?
number of protons in an atom, no of protons= no of electrons