Chapter 17, Problem 52E

Interpretation Introduction

Interpretation:

the symbol for the bismuth isotope containing 124 neutrons is to be written.

Concept Introduction:

To understand the radioactivity of isotopes of heavy elements notation of symbol for radioactive elements are used.

The notation of isotopes can be expressed as ${}_Z^{A}X$.

$X$ is the chemical symbol of isotope.

$A$ is the mass number of isotope.

$Z$ is the atomic number of the isotope.

The atomic number of any isotope is equal to its proton number.

Atomic mass of the isotope is equal to the sum of neutrons and protons present in nucleus.

Isotopes are the atoms of the same element having same number of protons, but different number of neutrons.