A) 30
B) 32
C) 34
D) 42
Correct Answer: A
Solution :
\[\because \] Number of electrons present in \[{{M}^{2+}}\] ion = 2 + 8 + 14 = 24 \[\therefore \] Number of electrons present in M atom = 24 + 2 = 26 ie, atomic number of M = 26 and, atomic weight = ionic weight =56 \[\therefore \] Number of neutrons = 56 - 26 = 30You need to login to perform this action.
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