Kapilesh Agrawala Solutions for Chapter: Atomic Structure, Exercise 3: EVALUATE YOUR UNDERSTANDING

Write down the formulae of the compounds that can be formed from the ions.

If the valency of hydrogen is one, what will be the valency of sulphate in ${\mathrm{H}}_2{\mathrm{SO}}_4$?

If the valency of hydrogen is one, what will be the valency of nitrate in ${\mathrm{HNO}}_3$?

An atom has $8$ electrons in its outermost shell. Explain Its chemical behaviour

Sodium atom transfer an electron to chlorine atom to form a sodium chloride molecule.

How do these atoms combines?

Explain the chemical behaviour of an atom.

The diagram shows the electronic structure of an atom. What is the number of protons in the nucleus?

The diagram shows an atom of boron. What are the proton number and nucleon number of boron?