Textbook Question 2A.21 part D)

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Anna_Mohling_1D
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Joined: Wed Sep 30, 2020 9:56 pm

Textbook Question 2A.21 part D)

Postby Anna_Mohling_1D » Wed Nov 11, 2020 12:39 pm

Give the ground-state electron configuration and number of unpaired electrons expected for each of the following ions: (a) Ca2+; (b) In+; (c) Te2−; (d) Ag+

I am a little bit confused about part d. I got the configuration for Ag+: [Kr]4d^9 5s^2
and then since it's plus 1 I thought it would be Ag+: [Kr]4d^9 5s^1 with 2 unpaired electrons. However, my answer is incorrect. Could anyone explain how to write this configuration?

KhanTran3K
Posts: 90
Joined: Wed Sep 30, 2020 9:31 pm

Re: Textbook Question 2A.21 part D)

Postby KhanTran3K » Wed Nov 11, 2020 12:52 pm

Hey!
I believe that the electron configuration for Ag+ would be [Kr]4d^10, since the atom would be more stable filling up this orbital rather than having two unpaired electrons. I think that it is better to minimize the amount of unpaired electrons since this would cause the atom to be less stable. Hope this helps!

Pranav Daggubati 3C
Posts: 109
Joined: Wed Sep 30, 2020 9:35 pm

Re: Textbook Question 2A.21 part D)

Postby Pranav Daggubati 3C » Wed Nov 11, 2020 2:33 pm

Ag+ has no electron in the 5s orbital because filling the 4d orbital is much more favorable.


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