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Modern Periodic Table and Periodic Properties — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryModern Periodic Table and Periodic Properties3 Marks
Question
(a) What do you understand by the term electron affinity?
(b) Does electron affinity represent energy released or absorbed?
(c) Name an element having strong electron affinity.
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Answer

(a) It is defined as the amount of energy released on adding an extra electron to an isolated gaseous atom in its lowest state of energy.
(b) It represents energy released.
(c) Chlorine has strong electron affinity.

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