Question

put these elements in order of largest to smallest atoms
rubidium
strontium
yttrium
palladium
silver
indium
xenon

Explanation:

Step1: Recall atomic - size trend

Atomic size decreases across a period from left to right in the periodic table due to increasing nuclear charge pulling the electrons closer.

Step2: Locate elements in periodic table

Rubidium (Rb) is in Group 1, Strontium (Sr) in Group 2, Yttrium (Y) in Group 3, Indium (In) in Group 13, Palladium (Pd) in Group 10, Silver (Ag) in Group 11, and Xenon (Xe) in Group 18. They are all in period 5.

Answer:

Rubidium, Strontium, Yttrium, Indium, Palladium, Silver, Xenon