which one of the following statement is correct for alkaline earth metal?
which one of the following statement is correct for alkaline earth metal?
A. They are diatomic and form ions of the type `M^+`
B. They are highly electronegative elements
C. They are monoatomic and form ions of the type `M^2`
D. Thy are diatomic and form ions of the type `M^(2+)`
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