Answer: A. Group 2
Answer: (A) Group 2
Alkaline earth metals (Be, Mg, Ca, ...) have 2 valence electrons, which they lose to show valency 2. Elements with 2 valence electrons are placed in group 2 of the modern periodic table.
Best answer
Answer: A. Group 2
Answer: (A) Group 2
Alkaline earth metals (Be, Mg, Ca, ...) have 2 valence electrons, which they lose to show valency 2. Elements with 2 valence electrons are placed in group 2 of the modern periodic table.
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