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9th CBSE
IMPORTANT
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The cathode rays obtained from all the gases consist of negatively charged particles called electrons.

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Important Questions on Structure of Atom

EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Very Short Answer Type Questions>Q 12
The anode rays obtained from all the gases consist of positively charged particles called protons.
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Very Short Answer Type Questions>Q 13
Name the central part of an atom where protons and neutrons are held together.
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Very Short Answer Type Questions>Q 14
What are the various letters used by Bohr to represent electron shells in an atom? 
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Very Short Answer Type Questions>Q 15
Name the particles which actually determine the mass of an atom.
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Very Short Answer Type Questions>Q 16
Name the positively charged particle present in the atoms of all the elements.
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Very Short Answer Type Questions>Q 17
What is the electronic configuration of a hydrogen atom?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Very Short Answer Type Questions>Q 18
How many times is a proton heavier than an electron? 1800 / 1837
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Very Short Answer Type Questions>Q 19
Name the gas which produces anode rays consisting of protons in the discharge tube experiment.