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Question

Which of the following have an (18+2) electron configuration?

A
Pb2+
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B
Cd2+
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C
Bi3+
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D
SO24
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Solution

The correct options are
A Pb2+
D Bi3+
(18+2) electron configuration
Electronic configuration
Pb+25d106s2 so 18+2 configuration
Bi+35d106s2 so 18+2 configuration

150924_126218_ans.gif

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