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Q.

What is electronegativity?

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Detailed Solution

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  • Electronegativity is the ability of an atom to attract a shared pair of electrons towards itself. For example in HCl, Chlorine is more electronegative than hydrogen so it will attract shared electron pairs towards itself.
  • Atomic size is the distance between the centre of the nucleus of an atom and its outermost shell. 
  • Valency is defined as combining the power of an element with other atoms to form a chemical bond.
  • Electron affinity is the amount of energy liberated when an electron is added to a neutral atom to form a negatively charged ion.
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