Question

quiz: period table & trends
the figure below shows chlorine iodine and bromine
which one is chlorine?
a
b
c

Explanation:

Atomic size increases down a group in the periodic table. Chlorine (Cl), bromine (Br), and iodine (I) are in the same group (Group 17 - halogens). Chlorine is the lightest and has the smallest atomic size among them. So the smallest - sized circle represents chlorine.

Answer:

C