Chemistry, 03.02.2020 20:47 falabit

Explain your answer.

7. which atom or ion is given with an excited outer electron configuration?

(a) na: 3s^1 (b) b: 2p^3 (c) he: 1s^2 (d) h^-1: 1s^2

9. how many unpaired electrons are there in the ti^3+ ion?

(a) 0 (b) 2 (c) 1

13. which set contains three isoelectronic species?

(a) zn, cd, hg (b) br^+, kr, rb^- (c) p^3-, se^2-, i^- (d) f, na^+, mg2^+

Answers: 3

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7. which atom or ion is given with an excited outer electron configu...