Periodicity in Properties-II

The video tutorial covers electron affinity and electronegativity, explaining their definitions, trends, and factors affecting them. Electron affinity can be positive or negative, with halogens having high negative values and noble gases showing positive values. Electronegativity is a measure of an atom's ability to attract electrons in a bond, influencing the type of bond formed. The tutorial discusses how these properties vary across periods and groups in the periodic table, influenced by atomic size, shielding effect, and nuclear charge.

Define electronegativity and explain its significance in chemical bonding.

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How does the effective nuclear charge affect electronegativity?

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Discuss the trend of electronegativity across a period and down a group in the periodic table.

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