EASY
8th CBSE
IMPORTANT
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Thomson could successfully explain the electrical neutrality of an atom.

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Important Questions on Atomic Structure

EASY
8th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 1 - Atomic Structure>PRACTICE QUESTIONS (COMPETITION WING)>Q 4
The e/m ratio of cathode rays is different for different gases.
MEDIUM
8th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 1 - Atomic Structure>PRACTICE QUESTIONS (COMPETITION WING)>Q 5
High pressure and low voltage should be maintained in the discharge tube for the production of cathode rays.
EASY
8th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 1 - Atomic Structure>PRACTICE QUESTIONS (COMPETITION WING)>Q 6
Mass number is the sum of number of protons and neutrons in an atom.
EASY
8th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 1 - Atomic Structure>PRACTICE QUESTIONS (COMPETITION WING)>Q 7
Cathode rays deflect in the presence of magnetic field.
EASY
8th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 1 - Atomic Structure>PRACTICE QUESTIONS (COMPETITION WING)>Q 8
According to Dalton's atomic theory, matter is composed of tiny indivisible particles called atoms.
MEDIUM
8th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 1 - Atomic Structure>PRACTICE QUESTIONS (COMPETITION WING)>Q 21

A certain amount of gas is enclosed in a discharge tube. The bulb in the arrangement given below can be made to glow when:

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MEDIUM
8th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 1 - Atomic Structure>PRACTICE QUESTIONS (COMPETITION WING)>Q 22
Which of the following particles is largely responsible for the chemical behaviour of elements?
EASY
8th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 1 - Atomic Structure>PRACTICE QUESTIONS (COMPETITION WING)>Q 23
X168 and X178 represent: