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The irregularity in the electron affinity trend between Cl and F is due to the small size of the F atom. Although F definitely has a higher attraction for an electron than Cl (as evidenced by its high electro negativity value), the small size of the F atom means that adding an electron creates significant repulsion. Since electron affinity is an energy measurement, the total energy associated with electron affinity winds up being the energy that is released by the electron binding to the nucleus, minus the energy involved in overcoming the electrical repulsion in the outer shell.
This makes the fluoride anion so formed unstable due to a very high charge/mass ratio. Also, fluorine has no d electrons which limits its atomic size. As a result, fluorine has an electron affinity less than that of chlorine.
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∙ 9y ago
Nani
Chlorine has hig electron affinity while fluorine has high electro negativity
Adolfo Bartoletti
Kendrick Rau
Wiki User
∙ 11y agoAkinin compund not an element but has high electron affinity.
Wiki User
∙ 12y agoIn the second period, columns 8 and 9.
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∙ 6y agoThese elements are halogens.
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∙ 6y agoIt is fluorine.
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∙ 11y agoFluorine
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∙ 11y agoNe
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What are the trends and exceptions to the trends in electron affinity?
Down the group electron affinity decreases Across a period electron affinity increases. However, it should be noted that chlorine is having higher electron affinity than flourine due to the small size of fluorine atom)
What alkaline earth metal has the largest electron affinity?
Beryllium
The elements to the left side of the periodic table in groups vIa and vIIa have a high or low electron affinity?
they posses a high electron affinity due to certain charges gained in the orbital
Which group of elements has the highest electron affinity?
Groups 6 and 7.
Which element has the lowest electron affinity Is it nitrogen?
No, nitrogen does not have a low electron affinity. Electron affinity increases as you go up and to the right on the periodic table. Thus, Groups I and II elements (ex. Cs, Ba, Sr, etc.) have LOW electron affinities and the halogens in Group VII (Br, Cl, F, etc) have the HIGHEST electron affinities. Chlorine has the HIGHEST electron affinity on the periodic table.(Fluorine is an exception in this case.)
What are the trends and exceptions to the trends in electron affinity?
Down the group electron affinity decreases Across a period electron affinity increases. However, it should be noted that chlorine is having higher electron affinity than flourine due to the small size of fluorine atom)
What element that increasing electron affinity?
rare earth elements
What alkaline earth metal has the largest electron affinity?
Beryllium
What is the electron affinity value and which elements have a zero value?
Noble gasses
Electron affinity tends to what?
Electron affinity is an elements' ability to attract electrons and is variable for each element. Generally the more electronegative atoms are furthest to the right bottom of the periodic table and ascending to the left the elements lose their electron accepting ability.
Is electron affinity of N is greater than F?
No, it is not. Electron affinity follows a trend like electronegativity and hence increases as we move from left to right across a period. So, Fluorine has the highest electron affinity among 1st period elements.
What is the trend in electron affinity of elements within a group?
decreases from top to bottom
What element has no electron affinity?
Helium has no electron affinity.
The elements to the left side of the periodic table in groups vIa and vIIa have a high or low electron affinity?
they posses a high electron affinity due to certain charges gained in the orbital
Which group of elements has the highest electron affinity?
Groups 6 and 7.
Which determines the reactivity of the elements?
Roughly, first ionization potential and electron affinity.
Which element has the lowest electron affinity Is it nitrogen?
No, nitrogen does not have a low electron affinity. Electron affinity increases as you go up and to the right on the periodic table. Thus, Groups I and II elements (ex. Cs, Ba, Sr, etc.) have LOW electron affinities and the halogens in Group VII (Br, Cl, F, etc) have the HIGHEST electron affinities. Chlorine has the HIGHEST electron affinity on the periodic table.(Fluorine is an exception in this case.)
