HARD
9th CBSE
IMPORTANT
Earn 100

Give important differences between:

Canal rays and cathode rays

Important Questions on Structure of Atom

MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 4 - Structure of Atom>Revision Exercise>Q 8
Give important differences between: 
Atomic number and mass number.

 
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 4 - Structure of Atom>Revision Exercise>Q 8
Give important differences between: 
Isotopes and isobars
EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 4 - Structure of Atom>TEST YOURSELF>Q 1
Name the scientist who showed the existence of protons in an atom.
EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 4 - Structure of Atom>TEST YOURSELF>Q 2
Name the isotope which is used in the treatment of cancer. 
EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 4 - Structure of Atom>TEST YOURSELF>Q 3
What is mass number? 
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 4 - Structure of Atom>TEST YOURSELF>Q 4
Which of the two has larger mass: electron or proton?
EASY
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 4 - Structure of Atom>TEST YOURSELF>Q 5
If Z = 3, what would be the valency of the element? Also name the element. 
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 4 - Structure of Atom>TEST YOURSELF>Q 6
Why did Rutherford select a gold foil in his α-particle scattering experiment?