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Questions
An element has its electron configuration as 2, 8, 2. Now answer the following question.
What is the group of this element?
The electronic configuration of an element is 2, 8, 2. Then write the answer to the question given below.
Which column does this element belong to?
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Solution
The given electronic configuration is 2, 8, 2, which means it has 2 valence electrons in its outermost shell. The group (column) number of a main-group element is directly determined by its number of valence electrons.
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