put these elements in order of smallest to largest atomic radius xenon neon radon argon krypton helium
put these elements in order of smallest to largest atomic radius xenon neon radon argon krypton helium
Answer
Explanation:
Step1: Recall atomic - radius trend
Atomic radius increases down a group in the periodic table. These elements (helium, neon, argon, krypton, xenon, radon) are all noble gases in Group 18.
Step2: Order elements
As we move down Group 18, the atomic radius increases. So, the order from smallest to largest atomic radius is based on their position in the group.
Answer:
Helium, Neon, Argon, Krypton, Xenon, Radon