Question

How to determine whether the element is electropositive or electronegative ?

Answer 1

Electropositive character means the tendency of an atom to lose $e^{-}$ and form a positive ion.

Electronegativity of an element is the ability to attract the shared pair of $e^{-}$ in a molecule forwards itself.

For eg: $Na$ have $1e^{-}$ in its' outermost shell has high tendency to lose $e^{-}$ & become $N{a}^{+}$. So, $Na$ is electropositive whereas, $F$ being small and is highly electronegative as it tends to complete its' outermost shell which is deficient of $1e^{-}$ only.