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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
How does an electron differ from a neutron?
What is the nature of the charge on Cathode rays .
Explain the rule according to which electrons are filled in various energy levels.
Choose the correct option
The number of valence electrons in O2- is :
Choose the correct option:
The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :
Explain the following:
Atoms combine by transfer and sharing of an electron(s).
Choose the correct answer from A, B, C and D:
When a metal atom becomes an ion:
The electronic configuration of nitrogen is (2, 5). How many electrons in the outer shell of a nitrogen atom are not involved in the formation of a nitrogen molecule?
Give a simple diagram to show the arrangement of the electrons in an atom of sulphur.
