Chapter 4, Problem 36QAP

Interpretation Introduction

Interpretation:

Of the given isotopes which are isotopes of the same element.

Concept Introduction:

Isotopes: The atoms of an element with different mass number or atomic mass are called isotopes. They have same number of protons and electrons but different number of neutrons. Therefore it in not necessary the all atoms of a given element contain the same number of neutrons in their nuclei. For example hydrogen has three isotopes${\text{H}}^{\text{1}}{\text{, H}}^{\text{2}}{\text{, H}}^{\text{3}}$ with 0, 1 and 2 neutrons in their nuclei respectively.

Mass number is equal to the total number of protons + number of neutrons

Atomic number of any element is indicates Number of protons or number of electron in the given atom.

The atomic symbol notation is as follows:

${\text{Atomic Symbol}}^{\text{Charge},+/-}$

Here A = mass number which is equal to the total number of protons + number of neutrons, Z = atomic number of any element which is also indicates Number of protons or number of electron in the given atom.