How does the tendency of elements to gain electrons change as we move from left to right in a period? state the reason of this change?
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Electronegativity is the tendency of an atom to attract electrons to itself when combined in a compound. Electronegativity increases across the period.
Following are the reasons or factors responsible for this trend in elements -
1. Atomic radii (decreases across a period) - A small atom takes up electrons more readily than a large atom since the nucleus has greater attraction on the electrons.
2. Nuclear charge (increases across a period) - as the nuclear charge increases, the tendency if atoms to accept electrons also increases.
Hope it helps!
Electronegativity is the tendency of an atom to attract electrons to itself when combined in a compound. Electronegativity increases across the period.
Following are the reasons or factors responsible for this trend in elements -
1. Atomic radii (decreases across a period) - A small atom takes up electrons more readily than a large atom since the nucleus has greater attraction on the electrons.
2. Nuclear charge (increases across a period) - as the nuclear charge increases, the tendency if atoms to accept electrons also increases.
Hope it helps!
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