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The magnitude of electron affinity depen...

The magnitude of electron affinity depends upon

A

Electron affinity

B

Polarising power

C

Ionization potential

D

The nuclear charge

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The correct Answer is:
D
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The amount of energy released when an electron is added to an isolated gaseous atom to produce a monovalent anion is called electron affinity of first electron affinity or electron gain enthalpy. The first electron affinity is given a negative sign as the addition of an electron to a neutral atom is an exoergic process. The addition of electron to A^(-) requires energy to overcome the force of repulsion. Thus, the second electron affinity is an endoergic process. The magnitude of electron affinity depends on a number of factors such as (i) atomic size (ii) effective nuclear charge (iii) screening effects (iv) half and fully filled orbitals and (v) shape of orbital. In general, electron affinity increase as the atomic radii decrease in a period. However, there are exceptions when the atoms have stable configuration. In a group, electron affinity decreases as the size increases. However, the members of 3rd period have somewhat higher values than the members in the 2nd period of the same subgroups. Which of the following has least electron affinity?

Electron affinity depends on

Electron affinity is

The electron affinity of

Electron affinity of :

The units of Electron Affinity are

Electron affinity is the

Electron affinity is the :

NARAYNA-PERIODIC TABLE -All Questions
  1. Among the following electronic configurations which one will have high...

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  2. The electron affinity of X is equal in magnitude with the ionisation p...

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  3. The magnitude of electron affinity depends upon

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  4. Among the following electronic configurations which one will have low ...

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  5. The correct electron affinity order of N,O,S,Cl is:

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  6. In which of the following process maximum energy is released

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  7. Which of the following elements have relatively high electronegativiti...

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  8. Which of the following is the second most electronegative element?

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  9. Element with lowest electronegativity is

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  10. A correct variation in the electronegativity value of atoms is

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  11. The most polar bond is

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  12. A qualitative measure of the ability of an atom into attract shared el...

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  13. Of the following elements, which one has the low electronegativity

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  14. Valency and oxidation number of nitrogen in N(2)O(5)

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  15. Two elements A and B have the following electronic configurations. The...

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  16. A metal forms a chloride with the formula MCl(2). Formula of Phosphori...

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  17. The correct order of electropositive nature of Li,Na and K is

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  18. As the alkaline earth metals (except Be) tend to lose their valence el...

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  19. The order in which the following oxides are arranged according to decr...

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  20. Chloride of an element A gives neutral solution in watt . In the perio...

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