e. 11Na,15P,17Cl, 14Si, 12Mg Which of these has largest atoms?

Question

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? 

Answer 1

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.