What is electronegativity ? Explain
Answers
Electronegativity:- It is the tendency of an atom to attract electron towards itself during formation of a bond. In other words it is a tendency of attracting shared paired of electron in a chemical bond.
Trends in group according to Modern Periodic Table:- On going down the group electronegativity decreases because atomic size increases.
Trends in period according to Modern Periodic Table:- Electronegativity increases along the period up to halogen only. Noble gas has complete octate so they do not attract electrons. Since going along the period atomic size decreases and nuclear charge increases therefore electronegativity increases.
Some Special Points:-
1. Highest electronegative element in whole period is Flourine that's why it is always negative .
2. Electronegativity is the character of non metals.
Answer:
Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The Pauling scale is the most commonly used. Fluorine (the most electronegative element) is assigned a value of 4.0, and values range down to caesium and francium which are the least electronegative at 0.7.
Explanation: