Which of the following statement is incorrect? (a) An element which has high electronegativity a...

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Which of the following statement is incorrect?
(a) An element which has high electronegativity always has high electron gain enthalpy.
(b) Electron gain enthalpy is the property of an isolated atom.
(c) Electronegativity is the property of a bonded atom.
(d) Both electronegativity and electron gain enthalpy are usually directly related to nuclear charge and inversely related to atomic size.
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