An element M has an atomic mass 19 and atomic number 9. Its ion is rep

1.	An element M has an atomic mass 19 and atomic number 9. Its ion is represented by
A.	\[{{M}^{+}}\]
B.	\[{{M}^{-}}\]
C.	\[{{M}^{2+}}\]
D.	\[{{M}^{2-}}\]
Answer» C. \[{{M}^{2+}}\]

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An element M has an atomic mass 19 and atomic number 9. Its ion is represented by

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