Classification Of Elements And Periodicity In Properties Question 337
Question: An element M has an atomic mass 19 and atomic number 9. Its ion is represented by
Options:
A) $ {{M}^{+}} $
B) $ {{M}^{-}} $
C) $ {{M}^{2+}} $
D) $ {{M}^{2-}} $
Show Answer
Answer:
Correct Answer: B
Solution:
$ {{M}^{-}} $ After gaining an $ {{e}^{-}} $ the metal attains stable configuration.
BETA
