Why does f have a higher electron affinity than O?
The incoming electron is going to be closer to the nucleus in fluorine than in any other of these elements, so you would expect a high value of electron affinity.
Does O have a high electron affinity?
If electron affinity is favorable, energy is released upon adding an electron, meaning it’s negatively-signed. However, since EA2 is positive, it means it requires energy to add that electron to O− ! Therefore, the “greater” electron affinity (really, the more favorable electron affinity) is with O .
Which has more electron gain enthalpy F or O?
Solution : F will have more negative electron gain enthalpy because in going from O to F. the atomic size decreases and the nuclear charge increases. Both these factors make the value of electron gain enthalpy of fluorine more negative because they tend to increase the nuclear pull for the incoming electron.
Why is the first electron affinity of O less than that of F?
As you might have noticed, the first electron affinity of oxygen (-142 kJ mol-1) is less than that of fluorine (-328 kJ mol-1). Similarly sulphur’s (-200 kJ mol-1) is less than chlorine’s (-349 kJ mol-1). Why? It’s simply that the Group 6 element has 1 less proton in the nucleus than its next door neighbour in Group 7.
Which electron has highest affinity?
Which Element Has the Highest Electron Affinity? Chlorine has the highest electron affinity among the elements. Its high affinity can be attributed to its large atomic radius, or size. Because chlorine’s outermost orbital is 3p, its electrons have a large amount of space to share with an incoming electron.
Which has higher electron affinity C or F?
Cl has higher affinity thanF because it can accommodate the incoming electron more easily thanF. F has small size and there will be repulsions for incoming electrons.
What is the electron affinity of F?
Electron affinity can be defined in two equivalent ways. First, as the energy that is released by adding an electron to an isolated gaseous atom….Elements.
| Z | 9 |
|---|---|
| Element | F |
| Name | Fluorine |
| Electron affinity (eV) | 3.401 189 8(24) |
| Electron affinity (kJ/mol) | 328.164 9(3) |
Which of the following has the most negative electron gain enthalpy O or F?
(i) O or F. Electron gain enthalpy of F is much more negative than that of O. This is because as we from O to F, the atomic size decreases and nuclear charge increases, thereby increase the attraction of the nucleus for the incoming electron and hence electron gain enthalpy becomes more negative.
Why electron gain enthalpy of oxygen and fluorine is less negative?
The negative electron gain enthalpy of fluorine is less than that of chlorine. It is due to small size of fluorine atom. As a result, there are strong interelectronic repulsions in the relatively small 2p orbitals of fluorine and thus, the incoming electron does not experience much attraction.
Does fluorine have the highest electron affinity?
Fluorine has highest electron affinity in the periodic table.
Which has higher electron affinity F or Cl?
What is the electron affinity of oxygen?
Electron affinity can be defined in two equivalent ways. First, as the energy that is released by adding an electron to an isolated gaseous atom….Elements.
| Z | 8 |
|---|---|
| Element | 16O |
| Name | Oxygen |
| Electron affinity (eV) | 1.461 113 4(9) |
| Electron affinity (kJ/mol) | 140.976 0(2) |