Chapter 10, Problem 10.136MP

(a)

Interpretation Introduction

Interpretation:

The atomic radius of the metal atom in picometers has to be calculated.

(b)

Interpretation Introduction

Interpretation:

The alkali metal has to be identified.

(c)

Interpretation Introduction

Interpretation:

The densities of the solid and vapor has to be calculated.

Concept Introduction:

Density:

Density can be defined as property that links mass of an object to its volume.  It is derived quantity and its unit is $\text{g}{\text{ml}}^{\text{-1}}$ for liquids and $\text{g}{\text{cm}}^{\text{-3}}$ for solid.  The density of material can be calculated with the help of formula,

$\text{Density = }\frac{\text{Mass}\left(\text{g}\right)}{\text{Volume}\left(\text{ml}\text{or}{\text{cm}}^{\text{3}}\right)}$