Which halogen has the most negative electron affinity?
Chlorine has the most negative electron affinity. According to Wikipedia [Electron affinity] , In chemistry and atomic physics, the electron affinity of an atom or molecule is defined as the amount of energy released when an electron is added to a neutral atom or molecule in the gaseous state to form a negative ion.
Do halogens have the lowest electron affinity?
The halogen will have the highest electron affinity, while the noble gas will have the lowest electron affinity.
What has the lowest electron affinity?
The correct answer is Argon. Argon has all filled orbitals as well as a filled valence shell. As a result, it doesn’t want to lose or gain any electrons. Hence, argon has the lowest electron affinity.
What does least negative electron affinity mean?
A more negative electron affinity corresponds to a greater attraction for an electron. (An unbound electron has an energy of zero.) Trends: As with ionization energy, there are two rules that govern the periodic trends of electron affinities: Electron affinity becomes less negative down a group.
Why do halogens have a negative electron affinity?
Electron affinities are negative numbers because energy is released. The elements of the halogen group (Group 17) gain electrons most readily, as can be seen from their large negative electron affinities. This means that more energy is released in the formation of a halide ion than for the anions of any other elements.
What 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.
Why do halogens have high negative 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.
Which element has the most negative electron affinity?
The overall order is Se < Te < Sb, so Se has the most negative electron affinity among the three elements.
Which 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.
What does most negative electron affinity mean?
Unlike electronegativity, electron affinity is a quantitative measurement of the energy change that occurs when an electron is added to a neutral gas atom. The more negative the electron affinity value, the higher an atom’s affinity for electrons.
Why are the electron affinities of the halogens the most negative quizlet?
Adding an electron would give halogens a noble gas configuration. Halogens have 7 valence electrons, so adding another electron would give them a noble gas configuration of 8 valence electrons. Having 8 valence electrons is more favorable than having 7, so they would have a highly negative electron affinity.
Which element has the most negative electron affinity quizlet?
Electron affinities increase (get more negative) going left to right across period 2, with the exception that N has a much lower electron affinity than C, therefore F has the highest (most negative) electron affinity.