Place the following elements in order of decreasing atomic radius. Xe Cs Ne
A) Ne Xe Cs
B) Xe Cs Ne
C) Ne Cs Xe
D) Cs Xe Ne
E) Cs Ne Xe

Question

Place the following elements in order of decreasing atomic radius. Xe Cs Ne
A) Ne > Xe > Cs
B) Xe > Cs > Ne
C) Ne > Cs > Xe
D) Cs > Xe > Ne
E) Cs > Ne > Xe

Quizplus · Accepted Answer

Atomic radius increases down a group and decreases across a period on the periodic table. Cs (Cesium) is in a lower period than Xe (Xenon), which is in a lower period than Ne (Neon), making Cs the largest and Ne the smallest.

Place the Following Elements in Order of Decreasing Atomic Radius