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प्रश्न
The subatomic particle called electron was discovered by :
पर्याय
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
All the gases from cathode rays and anode rays when electricity is passed through them :What does the formation of cathode rays tell us about the atoms?
The atom of an element X has 7 electrons in its M shell.
What type of ion will be formed by an atom of element X? Write the symbol of the ion formed.
What could element X be?
If an atom contains one electron and one proton, will it carry as a whole is neutral
What are inert elements?
The electronic configuration of fluoride ion is the same as that of the neon atom. What is the difference between the two?
Choose the correct answer from A, B, C and D:
When a metal atom becomes an ion:
Name or state the following:
Ion formed by the gain of an 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.
In a television tube, Cathode rays are deflected by magnetic fields.
When an atom gains an electron it has more electrons and thus it carries a positive charge.
