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प्रश्न
Name the negatively charged particle present in the atoms of all the elements.
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उत्तर
Electron (symbol: e−) is the negatively charged particle present in the atoms of all elements.
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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
Arrangement of electrons in the shells of an atom.
What are the observations of the experiment done by Rutherford in order to determine the structure of an atom?
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.
WRITE SHORT ANSWER
What do you mean by electron transition?
Name the three fundamental particles of an atom.
Define the term Mass number.
Explain in brief – Goldstein’s experiment which led to the discovery of the proton.
State how electrons are distributed in an atom. Explain in brief the rules which govern their distribution.
Select the correct answer from the choice in the bracket to complete the sentence:
An element ‘X’ has six electrons in its outer or valence shell. Its valency is __________.
