1) find: its atomic number a) 19 b) 39 c) 20 d) 1 e) 4 2) find: its mass number a) 19 b) 39 c) 20 d) 1 e) 4 3) find: the number of protons a) 19 b) 39 c) 20 d) 1 e) 4 4) find: the number electrons a) 19 b) 39 c) 20 d) 1 e) 4 5) find: the number of neutrons a) 19 b) 39 c) 20 d) 1 e) 4 6) find: the number of energy levels a) 19 b) 39 c) 20 d) 1 e) 4 7) find: the number of electrons in the outer most energy levels a) 19 b) 39 c) 20 d) 1 e) 4

Atomic structure prep 1

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