Question

What is electronegativity? Explain the variation in a period and in a group​

Answer 1

Answer:

Electronegativity, symbol χ, measures the tendency of an atom to attract a shared pair of electrons. An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus.

Explanation:

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Answer 2

Answer:

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons

So, as you move down a group on the periodic table, the electronegativity of an element decreases because the increased number of energy levels puts the outer electrons very far away from the pull of the nucleus. Electronegativity increases as you move from left to right across a period on the periodic table.

Explanation:

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