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Class 11
Chemistry
Chemical Bonding and Molecular Structure
write the favourable factors for the formation of...

Question:
Write the favourable factors for the formation of ionic bond.

Answer:

Ionic bond is a type of chemical bond which involves the transfer of one or more electrons from one ion to another ions of opposite charges. The ion which gains an electron is called as anions, whereas the ion which has loose an electron is called as cation. Mostly the cations are metals and anions are non-metal. For example:

Na + Cl → Na+ + Cl^- → NaCl

Hence, favourable factors for ionic bond formation are as follows:

(i) Low ionization enthalpy of metal atom.

(ii) The two ion must be different and should possess opposite charge.

(iii) High electron gain enthalpy (Δ_eg H) of a non-metal atom.

(iv) High lattice energy of the compound formed.

(v) The electron negativity between two ions should be greater than 1.7.

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Question:
Write the favourable factors for the formation of ionic bond.