Question

Write the most electronegative element and least electronegative element.

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Answer 1

Answer:

Thus, fluorine is the most electronegative element, while francium is one of the least electronegative. (Helium, neon, and argon are not listed in the Pauling electronegativity scale, although in the Allred-Rochow scale, helium has the highest electronegativity.)

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.