Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.
e. 11Na,15P,17Cl, 14Si, 12Mg Which of these has largest atoms?
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11Na,15P,17Cl, 14Si, 12Mg
element an thier electronic configurations:
11Na=2,8,1
15P=2,8,5
17Cl=2,8,7
14Si=2,8,4
12Mg=2,8,2
The element which has the largest atom is 11Na because atomic size decreases moving across a period from left to the right.
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