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प्रश्न
How did Neils Bohr visualise the atom ?
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उत्तर
Niels Bohr explained that atom is like a solar system with an empty space with a minute central nucleus, like Sun and electrons life planets revolve around it.
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संबंधित प्रश्न
TRUE \ FALSE
Neils Bohr gave the theory to explain the arrangement of protons in an atom.
Write the names of the elements present in the:-
Sodium hydroxide
Write the names of the elements present in the:-
Acetic acid
Define: Relative atomic mass
Name three non-metals/radicals which have valency -1, -2, and -3.
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is such a particle called ?
Fill in the blank
If an atom loses an electron, it acquires ______ a charge.
Why is it not possible to see an atom even with the most powerful microscope ?
Is it possible to see atoms these days ? Explain your answer.
Compare:
Chlorine atom and chloride ion, with respect to
Atomic structure
Electrical state
State the meaning of the term – (a) atom, (b) molecule, (c) radical – with a suitable example.
Select the correct answer to the statement given below:
The basic unit of matter is not capable of independent existence.
The smaller particles found in the atom is called ______.
K: Potassium:: C: ______.
Define – Atom.
An atom of an element has no electron. Will that atom have any mass or not? Can an atom exist without electron? If so then give example.
Atoms of different elements having the same number of ______ are called isotones.
The graphite refill used is pencil is made of element called ______.
The first scientific theory about atoms was given by J J. Thomson.
