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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 _________.
Write down the electronic configuration of the following:
(a) `""_13^27"Y"`
(b) `""_17^35"Y"`
The electronic configuration of fluoride ion is the same as that of the neon atom. What is the difference between the two?
Explain the following:
Atoms combine by transfer and sharing of an electron(s).
What is the term defined below?
A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
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]
What is the relation between the number of protons and the number of electrons in an atom?
In a television tube, Cathode rays are deflected by magnetic fields.
When an atom gains an electron it has more electrons and thus it carries a positive charge.
