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प्रश्न
Write true or false for the following statement
The maximum number of electrons in the first shell can be 8.
विकल्प
True
False
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उत्तर
false
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संबंधित प्रश्न
Fill in the blank
Neutrons are .......................... particles having mass equal to that of protons.
Give the following a suitable word/phrase.
Protons and neutrons present in the nucleus.
Give the following a suitable word/phrase.
The electrons present in the outermost shell.
FILL IN THE BLANK
In an atom, the last shell containing electrons is called its..................shell.
ANSWER IN DETAIL
Write a note on valence shell.
Define the term Mass number.
Define the term Nucleons.
With reference to the discovery of the structure of an atom, explain in brief – William Crookes experiment for the discovery of cathode rays, followed by – J.J. Thomsons experiment pertaining to the constituents of the cathode rays. State which sub-atomic particle was discovered from his experiment.
If an atom ‘A’ has an atomic number of eleven, state the number of protons and electrons it contains.
What is meant by the term subatomic particles?
