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प्रश्न
What are valence electrons?
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उत्तर
Valence electrons: The number of electrons present in the valence shell is known as valence electrons.
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संबंधित प्रश्न
Name the subatomic particle whose relative charge is : –1
Fill in the blank of the following statement :
Cathode rays are a beam of fast moving _________.
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 _________
The atom of an element X has 7 electrons in its M shell.
Is it a metal or a non-metal?
Name the sub-atomic particle whose charge is -1.
Write down the number of electrons in X and neutrons in Y.
Explain the following:
Atoms combine by transfer and sharing of an electron(s).
When an atom gains an electron it has more electrons and thus it carries a positive charge.
Assertion: Helium has four electrons in the outermost orbit.
Reason: Neon has eight electrons in the outermost orbit.
Select the INCORRECT statement.
