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प्रश्न
What is an electron? State its relative mass and charge.
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उत्तर
An electron (e−) is a fundamental subatomic particle with a negative elementary electric charge. Its mass is 1/1840th of that of a hydrogen atom.
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संबंधित प्रश्न
State whether the following statement is true or false :
The cathode rays obtained from all the gases consist of negatively charged particles called electrons.
Name the subatomic particle whose relative charge is : –1
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 subatomic particle called electron was discovered by :
What are cathode rays? How are these rays formed?
Explain the rule according to which electrons are filled in various energy levels.
The electronic configuration of fluoride ion is the same as that of the neon atom. What is the difference between the two?
Explain the following:
Atoms combine by transfer and sharing of an electron(s).
What is the term defined below?
A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
Give a reason why noble gases have a stable electronic configuration.
