Chapter 24, Problem 24.128P

Interpretation Introduction

Interpretation:

Change in mass of $1{\text{ mol }}^{50}Sc$ isotope when it’s metastable emits $\gamma$ radiation forming a stable form has to be calculated using the given data.

Concept introduction:

• Planck’s equation,

‘

  $\begin{array}{c}\text{E}\text{=}\frac{\text{hc}}{\text{λ}}\\ \text{where, E}\text{=}\text{energy}\\ \text{h}\text{=}\text{Planck's}\text{constant}\\ \lambda =\text{wavelength}\end{array}$

Unit conversion:

  $\begin{array}{l}1{\text{ MeV = 10}}^6\text{ eV = }1.602\times {10}^{-19}\text{ J}\\ \\ 1\text{ amu = 931}\text{.5 MeV}\\ \\ \text{1 amu = 1}\text{.66054}\times {\text{10}}^{-27}\text{ kg}\end{array}$