Question

Electronegativity and electropositivity with reason

Answer 1

the ability of atoms to attract the shared pair of electrons in its combined state is called electronegativity.
similarly
ability of an atom to withdraw a shared pair of electrons in its combined state is electro positivity.

Answer 2

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ELECTRONEGATIVITY

• Electronegativity is the ability of an atom to attract electrons in a covalent bond.
• Non-metals are more Electronegative.
• Most electronegative elements in the periodic table are :- Fluorine > Oxygen > Nitrogen ≥ Chlorine
• It increases from moving left to right in a period due to increase in effective nuclear charge.
• It decreases as we move from top to bottom as size of atom increases.

ELECTROPOSITIVITY

• Electropositivity is the ability of an atom to withdraw a shared pair of electrons in its combined state.
• Metals are more Electropositive.
• Caesium is most electropositive metal.
• It increases down the group.
• It decreases along the period.