Therefore, chlorine has a higher electron affinity than fluorine, and this orbital structure causes it to have the highest electron affinity of all of the elements.
What element has the highest electron affinity?
Chlorine has the highest electron affinity among the elements. Its high electron 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.
Why do halogens have the highest electron affinity?
The high electron affinities of the halogens are a result of their having an almost complete outer shell of electrons . ... Because of this overall attraction, energy will be released when the electron is captured by the fluorine atom. Similar reasoning also explains why oxygen also has a high electron affinity.
Do halogens have the highest electron affinity?
The halogen will have the highest electron affinity, while the noble gas will have the lowest electron affinity.
What is the order of electron affinity of halogens?
Electron Affinity (decreases down the group) Since the atomic size increases down the group, electron affinity generally decreases (At < I < Br < F < Cl ). An electron will not be as attracted to the nucleus, resulting in a low electron affinity. However, fluorine has a lower electron affinity than chlorine.
What is the lowest electron affinity?
Periodic Trends in Electron Affinity
The electron affinities of the noble gases have not been conclusively measured, so they may or may not have slightly negative values. Chlorine has the highest E ea while mercury has the lowest.
Why is Cl more EA than F?
This is due to the reason explained below: Fluorine has seven electrons in 2p-subshell whereas chlorine has seven electrons in its 3p-subshell. ... Since, energy released during the formation of Cl− (g) ion is more than that released in case of F−(g) ion, the electron affinity of chlorine is more than that of fluorine.
Which halogen has the smallest electron affinity?
Astatine has the lowest ionization energy, electron affinity, and electronegativity of all the halogens.
Which element has the most negative electron affinity?
Fluorine, therefore, has a lower affinity for an added electron than does chlorine. Consequently, the elements of the third row (n = 3) have the most negative electron affinities.
Do halogens have electron affinity?
| Halogen Electron Affinity (kJ/mol) | Astatine -270.1 |
|---|
What is the most active nonmetal?
Explanation: The most active group of nonmetals belong to the halogen family . These include fluorine, chlorine, bromine, iodine and . In the periodic table, they appear to the left of the noble gases on the right side of the table.
Which has more electron affinity oxygen or sulphur?
Due to small size and high electron density of oxygen compared to sulphur interelectronic repulsion is higher in oxygen resulting in less energy being released when an electron is added to oxygen due to lesser stability after electron is added which is due to the interelectronic repulsion in the small oxygen atom.
Why do noble gases have low electron affinity?
Large atoms have low ionization energy and low electron affinity. ... Any electrons added to a noble gas would have to be the first electron in a new (larger) energy level . This causes the noble gases to have essentially zero electron affinity.
What is the correct order of electron affinity?
Therefore, the correct order of electron affinity is Cl > F > Br . Hence, option C is the required answer.
How do you determine electron affinity?
The less valence electrons an atom has, the least likely it will gain electrons. Electron affinity decreases down the groups and from right to left across the periods on the periodic table because the electrons are placed in a higher energy level far from the nucleus, thus a decrease from its pull.
What is the correct order of electron affinity of oxygen family?
Hence, The correct order of electron affinity is [O < Se < S] .
