Question

Pls help with my chem

Answer 1

9. Atomic mass

8.2,1

7.Atomic mass number

6.F(fluorine)

5.1s2 2s2 2p6 3s2 3p6 4s1 and valency 1

Hope it helps

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Answer 2

1. embedded

2. positive, Goldstein

3. C 14

4. He +2 ions

5. [Ar] 4s1, +1

6. Answer as in above image.

7. atomic mass

8. +2, -1

9. atomic mass(mass number)