In which list are the elements arranged in order of increasing atomic mass?(1) Cl, K, Ar (3) Te, I, Xe(2) Fe, Co, Ni (4) Ne, F, Na

Chemistry · High School · Tue Nov 03 2020

Answered on

Here, option (A) is correct. 

Cl = 35.5 u

K = 39

Ar = 40