Chemistry - PERIODIC TABLE Question with Solution | TestHub
Electronegativity is the property of a bonded atom. The relative tendency of an atom to attract the shared electron pair towards itself is called electronegativity. electron affinity electronegativity both measure the power of attracting electrons but electron affinity is concerned with an isolated gaseous atom while electronegativity is concerned with the atom in combination.
Select the CORRECT order of electronegativity ?
Options:(select one or more)
Answer:
Solution:
sp < sp² < sp³ → Wrong.
EN increases with more s-character, because more s-character → electrons held closer to nucleus → more electronegative.
Correct trend: sp³ < sp² < sp
Fe²⁺ < Fe³⁺ → Correct.
Higher positive charge → Fe³⁺ attracts bonding electrons more strongly → higher EN.
–CF₃ > –CH₃ → Correct.
Electron-withdrawing groups like –CF₃ increase electronegativity of the attached atom.
Se > S → Wrong
EN decreases down the group → S > Se
