Chapter 2, Problem 9ALQ

Interpretation Introduction

Interpretation:

Why Dalton assumption is not valid to be explained.

Concept introduction:

Isotope: Isotopes are chemical element which have same atomic number.  The number of protons in the nucleus of the atom is known as atomic number and number of protons equals to number of electrons in neutral atoms.

${\text{X}}_{\text{A}}^{\text{Z}}$

Where,

A-Atomic number ( number of protons which is equal to the electron)

Z-mass number (proton+ Neutron)

Example: Isotopes of Carbon are, ${\text{C}}_{\text{6}}^{\text{12}}{\text{,C}}_{\text{6}}^{\text{13}}{\text{,C}}_{\text{6}}^{\text{14}}$