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प्रश्न
Give the following a suitable word/phrase.
Protons and neutrons present in the nucleus.
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उत्तर
Term for protons and neutrons present in nucleus is nucleons
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संबंधित प्रश्न
Write true or false for the following statement
The maximum number of electrons in the first shell can be 8.
Give the following a suitable word/phrase.
The sum of the number of protons and neutrons of an atom.
Mention briefly the salient features of Dalton’s atomic theory (five points)
Tick the most appropriate answer.
In 1908, R A Millikan found the charge of an electron to be
- 1.6 x 10-19 C
- 1.6 x 10-15 C
- 1.4 x 10-19 C
- 1.6 x 19-16 C.
TRUE \ FALSE
Electrons are present in the nucleus.
WRITE SHORT ANSWER
What is an atom?
WRITE SHORT ANSWER
Describe a discharge tube.
Which of the following statement is always correct?
State its one drawback of Rutherford’s atomic model.
State how electrons are distributed in an atom. Explain in brief the rules which govern their distribution.
