Question Atomic Atomic Mass Mass Protons Neutrons

Question:I need to show the following please help me understand

Atom/Ion…………….Atomic #.…………Atomic Mass………...Mass #………Protons………Neutrons………Electrons

1) H

2) H+

3)12 C

6

4) 7Li+

3

5) 35CI-

17

6) 39K

19

7) 24MG2+.

12

8) As3-

9) Ag

10) Ag+1

11) S-2

12) U

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