Electronegativity describes the ability of an atom to repel electrons true or false

Electronegativity,  is a chemical property that describes the tendency of an atom to attract electrons (or electron density) towards itself.

so true

Electronegativity; Ability of an atom to attract a shared pair of electrons in its combined state. Non-metals are more Electronegative.

Electropositivity: Ability of an atom to withdraw a shared pair of electrons in its combined state. Metals are more Electropositive.

So the answer is False

1. they vary with a higher number because boiling is way hotter than melting