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प्रश्न
Fill in the blanks of the following statements :
An atom has atomic mass number 23 and atomic number 11. The atom has_________ electrons.
Cathode rays are a beam of fast moving _________
The maximum number of electrons that can be accommodated in L shell are_________
The maximum number of electrons that can go into the M shell is _________
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उत्तर
In general, an atom has an atomic mass number 23 atomic number 11 and 11 electrons.
Cathode rays are a beam of fast moving electrons.
The maximum number of electrons that can be accommodated in the L shell are 8.
The maximum number of electrons that can be accommodated in the M shell is 18.
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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?
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?
Give a simple diagram to show the arrangement of the electrons in an atom of sulphur.
Explain in brief the experimental proof which led to the discovery of –
Electrons
What are the noble gases?
Give a reason why noble gases have a stable electronic configuration.
Cathode rays are made up of
Which of the following statement is always correct?
When an atom gains an electron it has more electrons and thus it carries a positive charge.
