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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
Name the subatomic particle whose relative charge is : –1
What is the absolute mass and charge of an electron?
Element X has electronic configurations 2, 8, 18, 8, 1. Without identifying X,
- Predict the sign and charge on a simple ion of X.
- Write if X will be an oxidizing agent or a reducing agent. Why?
An atom X has three electrons more than the noble gas configuration. What type of ion will it form?
Choose the correct option:
The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :
Choose the correct answer from A, B, C and D:
When a metal atom becomes an ion:
Name or state the following:
A bond formed by transfer of electron(s)
What is the relation between the number of protons and the number of electrons in an atom?
When an atom gains an electron it has more electrons and thus it carries a positive charge.
Select the INCORRECT statement.
