Question

*will fan and give medal!! need immediate help!!
Which statement is true about the atomic radius
of krypton, compared to other atoms?



A.
The atomic radius of krypton is smaller than the atomic radius of bromine.

B.
The atomic radius of krypton is smaller than the atomic radius of argon.

C.
The atomic radius of krypton is larger than the atomic radius of xenon.

D.
The atomic radius of krypton is larger than the atomic radius of arsenic

Answer 1

@magicremix123

Answer 2

Two useful rules of thumb:

1) atomic radius increases as you go down a column on the periodic table (group)
2) atomic radius decreases as you go to the right in a row on the periodic table (period)

Those rules, coupled with a periodic table, should be all you need to correctly answer this question.