Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The number of electron and proton in the third alkaline earth metal ion will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Third alkaline earth metal is calcium 
.
No. of electron are 20 & No. of proton are 20; e/20, p/20.
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