Dr. Pankaj Rai Solutions for Chapter: Atoms and Molecules, Exercise 1: Exercise

What is the relation between nanometre and metre?

Which particular atom of the above element is used for this purpose?

What value has been given to the mass of this reference atom?

What is the atomicity of the following?

Neon

Write the chemical formula of the calcium phosphate.

The atom of an element $\mathrm{X}$ contains $17$ protons, $17$ electrons and $18$ neutrons whereas the atom of an element $\mathrm{Y}$ contains $11$protons, $11$ electrons and $12$ neutrons. What will be the number of neutrons, in the ion formed from $\mathrm{Y}$?

What is the numerical value of Avogadro's number?

What is the name given to the number  $6.022\times {10}^{23}$ ?