The density of alkali metals is in the order:

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) In general,moving down the group,the atomic mass increases more significantly than the atomic volume,leading to an increase in density for Group $

Vedclass · Accepted Answer

$K < Na < Rb < Cs$

Vedclass · Answer

(B) In general,moving down the group,the atomic mass increases more significantly than the atomic volume,leading to an increase in density for Group $I$ metals. However,there is an anomaly at $K$ due to the presence of an empty $3d$ subshell,which causes a larger increase in atomic volume compared to the increase in mass. The correct order of density for alkali metals is $Li < K < Na < Rb < Cs$.

Similar Questions

Give the uses of alkali metal elements (group-$I$).

The basicity of the hydroxides of the following alkali metals is of the order:

$A$ metal when left exposed to the atmosphere for some time becomes coated with green basic carbonate. The metal in question is

Which of the following is a good reducing agent?

The metallic lustre exhibited by sodium is explained by

Vedclass Test Series

Exam Paper Generator

Online Exam Module