The second electron affinity of an element is:

Important Questions on Classification of Elements and Periodicity in Properties

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 68

The correct order of electron affinity is:

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 69

For electron affinity of halogens which of the following is correct?

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 70

In which case, the energy released is minimum?

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 71

Which of the following will have the most negative electron gain enthalpy and which the least negative?

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 72

Among halogens, the correct order of amount energy released in electron gain (electron gain enthalpy) is

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 73

Which of the following will have the most negative electron gain enthalpy and which the least negative? $\mathrm{F},\mathrm{P},\mathrm{S},\mathrm{Cl}$

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 74

The order of electron gain enthalpy (magnitude) of $\mathrm{O}, \mathrm{S}$ and $\mathrm{Se}$ is:

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 75

Electronic configurations of four elements $\mathrm{A}, \mathrm{B}, \mathrm{C}$ and $\mathrm{D}$ are given below:
$\left(\mathrm{i}\right) 1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^6$
$\left(\mathrm{ii}\right) 1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^4$
$\left(\mathrm{iii}\right) 1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^1$
$\left(\mathrm{iv}\right) 1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^5$
Which of the following is the correct order of increasing tendency to gain electron: