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3. An element has its electronconfiguration as 2,8,2. Now answerthe following questions.What is the atomic number of thiselement?What is the group of this element?To which period does this elementbelong?a.b.c. |
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Answer» A. The atomic number is 12b. The valency of it is +2. It can donate electrons.c. Be because they both have same number of valence electron in their outermost orbit. Hence both are metals can donate electrons. And both lie in same group that is group 2 so they have same physical and chemical properties. |
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