Rank the following elements in order of increasing atomic size: Al, Ba, O, C
A)Al

Name: Rank the following elements in order of increasing atomic size: Al, Ba, O, C A)Al < Ba < O < C B)Ba < Al < O < C C)Ba < Al < C < O D)O < C < Al < Ba E)C < O < Al < Ba
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Question

Rank the following elements in order of increasing atomic size: Al, Ba, O, C
A)Al < Ba < O < C
B)Ba < Al < O < C
C)Ba < Al < C < O
D)O < C < Al < Ba
E)C < O < Al < Ba

Quizplus · Accepted Answer

The atomic size increases as we move down a group and from right to left across a period in the periodic table. 
So, the order of increasing atomic size will be O < C < Al < Ba. 
Option D correctly represents this order.

Rank the Following Elements in Order of Increasing Atomic Size