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प्रश्न
The subatomic particle called electron was discovered by :
विकल्प
J.J. Thomson
Neils Bohr
James Chadwick
E. Goldstein
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उत्तर
J.J. Thompson
J.J. Thompson discovered electrons by conducting a cathode-ray experiment.
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संबंधित प्रश्न
What is an electron? State its relative mass and charge.
How does an electron differ from a neutron?
What are cathode rays? How are these rays formed?
The electronic configuration of fluoride ion is the same as that of the neon atom. What is the difference between the two?
Name or state the following:
A bond formed by transfer of electron(s)
In the formation of (i) oxygen molecule (ii) carbon tetrachloride molecule, state the following:
- Electronic configuration of nearest inert gas attained.
- How many electrons are shared/transferred in bond formation
- Which type of bonds these compounds form?
- Draw their orbital diagrams.
The number of electrons in an element X is 15 and the number of neutrons is 16. Which of the following is the correct representation of the element?
Which of the following statement is always correct?
The relative charge of an electron is – 1.
When an atom gains an electron it has more electrons and thus it carries a positive charge.
