Which of the following correctly lists the five atoms in order of increasing size (smallest to largest)?
A)Ge

Question

Which of the following correctly lists the five atoms in order of increasing size (smallest to largest)?
A)Ge < Si < S < O < Ne
B)Ne < O < S < Si < Ge
C)Ne < S < O < Si < Ge
D)Ne < Si < O < S < Ge
E)Ne < Ge < Si < S < O

Quizplus · Accepted Answer

Atomic size increases down a group and decreases across a period in the periodic table. Ne (Neon) is the smallest as it is a noble gas with a complete octet, making it very stable and compact. Then, as we move to the left in the same period, atomic size increases (O < S), and as we move down a group, size increases further (Si < Ge). Therefore, the correct order from smallest to largest is Ne < O < S < Si < Ge.

Which of the Following Correctly Lists the Five Atoms in Order