What element has the highest electron affinity?
chlorine
Which has higher electron affinity lithium or fluorine?
ANSWER : FLUORINE is the one which has highest electron affinity among lithium,carbon and neon.
Why does beryllium have a higher electron affinity than lithium?
Lithium can affinity to receive electrons in 2s sub-shell but for beryllium, a still higher energy 2p level. Hence beryllium resists to gaining extra electrons in higher energy levels or 2p orbitals.
Which has more negative electron affinity O or O?
Well, if you look at the definition, electron affinity is just the propensity to accept electrons. Actually, since O− is negatively-charged, it would be more difficult to accept an electron, and significant coulombic repulsion would make the electron affinity of O− more positive than that of O (which is negative).
Why the second electron affinity of oxygen is positive explain with proper reasons?
Because the electron is negatively charged you can see that there will be repulsion between the ion and the electron making the process endothermic, hence the positive value. The reason why it can happen is that this is just one energy change in a whole series which may occur during a reaction.
Why is second electron affinity of oxygen is negative?
You are forcing an electron into an already negative ion. It’s not going to go in willingly! The positive sign shows that you have to put in energy to perform this change. The second electron affinity of oxygen is particularly high because the electron is being forced into a small, very electron-dense space.
What is the second electron affinity of oxygen?
about 8 eV
Why are 2nd and 3rd electron affinities endothermic?
2nd electron affinity is always endothermic (positive) because the electron is added to an ion which is already negative therefore it must overcome the repulsion.
What is the second electron affinity of oxygen in kJ mol?
Electron Affinity of Oxygen is 141 kJ/mol.
Does oxygen have a high electron affinity?
Why does oxygen have a high electron affinity? The positive sign shows that you have to put in energy to perform this change. The second electron affinity of oxygen is particularly high because the electron is being forced into a small, very electron-dense space.