- 1(current)
Q. No.Difference between electron gain enthalphy and electronegativity is described by :
| 1. | Valence electrons | 2. | Atomic size |
| 3. | Atomic radii | 4. | Atomic number |
Subtopic: Electronegativity | Electron Affinity (EA) |
70%
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| Elements | |||
| I | 520 | 7300 | -60 |
| II | 419 | 3051 | -48 |
| III | 1681 | 3374 | -328 |
| IV | 1008 | 1846 | -295 |
| V | 2372 | 5251 | +48 |
| VI | 738 | 1451 | -40 |
1. III
2. IV
3. II
4. V
Subtopic: Ionization Energy (IE) | Electron Affinity (EA) |
67%
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An element with higher negative electron gain enthalpy in the given pair is:
(i) O or F (ii) F or Cl
1. O, Cl
2. F, F
3. O, F
4. F, Cl
Subtopic: Electron Affinity (EA) |
74%
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The relationship between 1st and 2 nd electron gain enthalpy of oxygen atom (O) would be :
| 1. | Both values of electron gain enthalpy are negative. |
| 2. | The 1st electron gain enthalpy of (O) is negative while 2 nd is positive. |
| 3. | Both values of electron gain enthalpies are positive. |
| 4. | The 1st electron gain enthalpy of (O) is positive while 2 nd is negative. |
Subtopic: Electron Affinity (EA) |
73%
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The reactivity of alkali metals increases, whereas halogen decreases down the group, because:
| 1. | On moving down, ionization enthalpy decreases in group 1 while the electron gain enthalpy becomes less negative in group 17. |
| 2. | On moving down, ionization enthalpy increases in group 1 while the electron gain enthalpy becomes less negative in group 17. |
| 3. | On moving down, ionization enthalpy increases in group 1 while the electron gain enthalpy becomes less positive in group 17. |
| 4. | On moving down, ionization enthalpy decreases in group 17 while the electron gain enthalpy becomes less negative in group 1. |
Subtopic: Ionization Energy (IE) | Electron Affinity (EA) |
74%
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Q. No.
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