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Valence Electrons of Various Elements, Lecture notes of Chemistry

The number of valence electrons for various elements, including o, p, v, ca, xe, hg, te, cl-, i5+, xe2+, zn2+, ge4+, tc4+, sb3+, and o-.

Typology: Lecture notes

2021/2022

Uploaded on 09/12/2022

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  1. How many valence electrons do the following contain?

(a) O

O ([He] 2s^2 , 2p^4 ) = 6

(b) P

P ([Ne] 3s^2 , 3p^3 ) = 5

(c) V

V ([Ar] 4s^2 , 3d^3 ) = 5

(d) Ca

Ca ([Ar] 4s^2 ) = 2

(e) Xe

Noble gas therefore 0 valence electrons

(f) Hg

Hg ([Xe] 6s^2 , 4f^14 , 5d^10 ) = 2

(g) Te

Te ([Kr] 5s^2 , 4d^10 , 5p^4 ) = 6

(h) Cl-

Noble gas configuration therefore 0 valence electrons

(i) I5+

I5+^ ([Kr] 5s^2 , 4d^10 ) = 2

(j) Xe^2 +

Xe^2 +^ ([Kr] 5s^2 , 4d^10 , 5p^4 ) = 6

(k) Zn2+

Noble gas configuration therefore 0 valence electrons

(l) Ge4+

Noble gas configuration therefore 0 valence electrons

(m) Tc4+

Tc^4 +^ ([Kr] 4d^3 ) = 3

(n) Sb3+

Sb^3 +^ ([Kr] 5s^2 , 4d^10 ) = 2

(o) O-

O-^ ([He] 2s^2 , 2p^5 ) = 7

(p) Nb^3 +

Nb^3 +^ ([Ar] 4d^2 ) = 2