What is electronegativity ? Explain why halogens possess highest electronegativity.

Which halogen has the highest electron gain enthalpy and which halogen has the highest Electronegativity?

Among N,O and F, which posses highest electronegativity?

What is electronegativity of an element? How does electromegativity vary in a period and in a group in the periodic table?

Define Electronegative element.

Explain why the following system is not aromatic.

Explain why NO_2 dimerises.

Explain why the setting sun looks red?

Explain why sportsmen use shoes with spikes.