test 7 Flashcards
1
Q
Atomic number
A
Number protons of an atom
2
Q
Mass number
A
Number of protons + neutrons
3
Q
Quantum numbers
A
Values which represents the theoretical “address” of an electron in an atom
4
Q
Energy levels
A
Specific regions of space in which electrons can move about the nucleus of an atom based on stability of an atom 
