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- An atom with high electronegativity has:Option: 1 High ionisation potentialOption: 2 Large
- #National Eligilibility Cum Entrance Test
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- #Classification of Elements and Periodic table
An atom with high electronegativity has:
High ionisation potential
Large size
Low ionisation potential
Low electron affinity
Answers (1)
Electronegativity -
The tendency of an atom to attract the shared pair of electrons towards itself is called electronegativity. It is a relative quantity. This concept was introduced in 1932 by Pauling. It has no units. Fluorine is the most electronegative element known so far and its value is arbitrary given as 4.0. In moving from left to right in a period, the electronegativity increases while in moving to top to bottom in a group, the electronegativity decreases.
Variation of Electronegativity
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In moving from top to bottom in a group the atomic size increases thus the force of attraction decreases and hence the electronegativity decreases.
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In moving from left to right in a period, the atomic size decreases and effective nuclear charge increases, thus the electronegativity increases.-
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An atom that has higher electronegativity, it requires a lot of energy of remove an electron from this atom. In this atom, the electrons are very tightly bound in the atom.
Therefore, Option(1) is correct
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