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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
The subatomic particle called electron was discovered by :
The ion of an element has 3 positive charges. The mass number of atom of this element is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
What is the nature of the charge on Cathode rays .
Give the symbol and charge of each particle.
Choose the correct option
The number of valence electrons in O2- is :
Name or state the following:
Ion formed by the gain of an electron(s)
Write down the electronic configuration of the following
- 2713X,
- 3517Y.
Write down the number of electrons in X and neutrons in Y and the formula of the compound formed by X and Y.[XY3]
Explain in brief the experimental proof which led to the discovery of –
Electrons
All non–metals will have ______ electrons in the outermost orbit of their atoms.
In a television tube, Cathode rays are deflected by magnetic fields.
