What does more favorable electron affinity mean?
Electron Affinity is the energy associated with the addition of an electon to a gaseous atom. This is because energy is usually released in this process, as opposed to ionization energy, which requires energy. A more negative electron affinity corresponds to a greater attraction for an electron.
Why does bromine have a high electron affinity?
Moreover, bromine has an extra full shell of core electrons between the nucleus and the outermost shell. These extra core electrons will shield the outermost electrons from the nucleus. In other words, chlorine has a higher electron affinity than bromine.
What’s the electron affinity for bromine?
Electron Affinity of Bromine is 324.6 kJ/mol. Electronegativity of Bromine is 2.96.
How do you determine most favorable 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.
Which 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.
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.
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 Eea while mercury has the lowest.
Which element has the most positive electron affinity?
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.