Question

Give the uncondensed ground state electron configurations for the following atoms and ions. a. Te2- b....

Give the uncondensed ground state electron configurations for the following atoms and ions.
a. Te2-
b. As
c. Cr
d. The smallest halogen atom
e. Al3+
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Answer #1

a) Te-2

atomic number of Te = 52

electron configurations for Te-2 = 1s22s2 2p6 3s2 3p6 4s2 3d10 4s2 4p6 4d10 5s2 5p6

b) As

atomic number of As = 33

electron configurations for As = 1s22s2 2p6 3s2 3p6 4s2 3d10 4s2 4p3

c) Cr

atomic number of Cr = 24

electron configurations for Cr = 1s22s2 2p6 3s2 3p6 4s1 3d5

d) the smallest halogen is F.

atomic number of F = 9

electron configurations for Cr = 1s22s2 2p5

e) Al+3

atomic number of Al = 13

electron configurations for Al+3= 1s22s2 2p6

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