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Question
The electronic configuration of a dipositive metal M2+ is 2, 8, 14 and its atomic weight is 56 a.m.u. The number of neutrons in its nuclei would be
The electronic configuration of a dipositive metal M2+ is 2, 8, 14 and its atomic weight is 56 a.m.u. The number of neutrons in its nuclei would be
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Solution
The correct option is A 30
Total number of electrons inM+2 ion are 26 (Z =26)
mass number (A) =56
No. of neutrons =A - Z
=56-26
=30
30
Total number of electrons inM+2 ion are 26 (Z =26)
mass number (A) =56
No. of neutrons =A - Z
=56-26
=30
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