How will you find the valency of sulphur?

Important Questions on Structure of the Atom

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 4 - Structure of the Atom>Practice Questions>Q 20

How will you find the valency of magnesium? 

HARD

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 4 - Structure of the Atom>Practice Questions>Q 1

Give the name of the scientist who discovered the electron. Describe the experiment conducted for the discovery of electrons. How are the mass and charge of electrons determined?

HARD

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 4 - Structure of the Atom>Practice Questions>Q 2

Compare the characteristics of an electron, a proton and a neutron.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 4 - Structure of the Atom>Practice Questions>Q 3

Write brief notes on: nucleus.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 4 - Structure of the Atom>Practice Questions>Q 3

Write brief notes on: isotopes.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 4 - Structure of the Atom>Practice Questions>Q 3

Write brief note on: isobars.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 4 - Structure of the Atom>Practice Questions>Q 4

Describe the observations in $\mathrm{\alpha }$-particle scattering experiment which led Rutherford to make the following conclusions: Nucleus is positively charged.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 4 - Structure of the Atom>Practice Questions>Q 4

Describe the observations in $\mathrm{\alpha }$-particle scattering experiment which led Rutherford to make the following conclusions: Almost the entire mass of an atom is present in the nucleus of atom.