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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
Fill in the blank of the following statement :
Cathode rays are a beam of fast moving _________.
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?
How does an electron differ from a neutron?
The atom of an element X has 7 electrons in its M shell.
Is it a metal or a non-metal?
An element A has 1 electron in its first shell. It combines with element B having 7 electrons in its third shell. What type of bond is formed?
What is the term defined below?
A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
Atoms of all metals will have ______ electrons in their outermost orbit.
Helium has two electrons in the outermost orbit and so it is chemically inert.
When an atom gains an electron it has more electrons and thus it carries a positive charge.
Select the INCORRECT statement.
