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What is the most negative electron affinity?
Electron affinity of non metals is highest negative. Here, apart from Br all are metals. So, Br has most negative electron affinity.
Which has the least negative value of electron affinity?
P has the least negative one due to the larger size. Was this answer helpful?
Which element has the highest most negative electron affinity? A Xe B S C Cs D Ba E Cu
Images related to the topicWhich element has the highest most negative electron affinity? A Xe B S C Cs D Ba E Cu
Does electron affinity get more negative from left to right?
The amount of energy released when an electron is added to a neutral atom to form an anion is called electron affinity. Electron affinities are difficult to measure. Electron affinity increases going left to right across a period. The overall trend across a period occurs because of increased nuclear attraction.
Which element has the most negative electron affinity quizlet?
Therefore carbon has the highest (most negative) electron affinity rather than nitrogen. Which of the following has the largest atomic radius? Atomic radius increases going down a group (column) and to the left across a period (row) on the periodic table.
What has the greatest electron affinity?
Which Element 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.
Why are electron affinities negative?
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.
How do you know the order of electron affinity?
Therefore, the correct order of electron affinity is Cl > F > Br. Hence, option C is the required answer. Note: You should know that mercury has the lowest electron affinity. As we know metals have a tendency to lose electrons, metals would certainly be the most reluctant in gaining any electrons.
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Periodic Trends — Electron Affinity
Electron affinities are usually negative values, since energy is usually released (an exothermic energy change) when an electron is added to a neutral atom. If …
Among the following element having the most negative …
Electron affinity of non metals is highest negative. Here, apart from Br all are metals. So, Br has most negative electron affinity.
Electron affinity (data page) – Wikipedia
This page deals with the electron affinity as a property of isolated atoms or molecules Solid state electron affinities are not listed here. Contents.
What Is Electron Affinity? | Trends & Chart | ChemTalk
Chlorine has the highest electron affinity among the elements. Its high affinity can be attributed to its large atomic radius, or size. Because …
Which has more negative electron gain enthalpy O or F?
Solution : F will have more negative electron gain enthalpy because in going from O to F. the atomic size decreases and the nuclear charge increases. Both these factors make the value of electron gain enthalpy of fluorine more negative because they tend to increase the nuclear pull for the incoming electron.
Which has more negative electron gain enthalpy?
Chlorine has the most negative electron gain enthalpy.
Which has more negative electron gain enthalpy Cl or F?
The negative electron gain enthalpy of fluorine is less than that of chlorine. It is due to small size of fluorine atom. As a result, there are strong interelectronic repulsions in the relatively small 2p orbitals of fluorine and thus, the incoming electron does not experience much attraction.
Which has higher electron affinity F or Cl?
Electronegativity of fluorine is greater than that of chlorine but electron affinity of chlorine is greater than that of fluorine.
Electron Affinity Trend, Basic Introduction, Chemistry
Images related to the topicElectron Affinity Trend, Basic Introduction, Chemistry
Why second electron affinity is positive?
However, more energy is required to add an electron to a negative ion (i.e., second electron affinity) which overwhelms any the release of energy from the electron attachment process and hence, second electron affinities are positive.
Which is the most electronegative element?
Fluorine is assinged the oxidation number of -1 because it attracts the electrons in the bond more strongly than the carbon does. Thus, fluorine appears to have an extra electron, -1 oxidation number. F is the most electronegative element on the periodic table.
Which element has the highest most negative electron affinity group of answer choices KR S CR Li MG?
Given the remaining choices, the element with the highest electron affinity is thus sulfur (S).
Which has more electron affinity carbon or nitrogen?
Nitrogen has lower electron affinity than its preceeding element carbon because. Electron affinity decreases along a period.
Why are the electron affinities of the group 4A elements more negative than those of the group 5A elements?
Why are the electron affinities of the Group 4A elements more negative than those of the Group 5A elements? Group 5A half-filled p-subshells discourage addition of an electron.
What is positive electron affinity?
The electron affinity is the energy change when an atom gains electrons. The convention is that the higher or more positive the electron affinity value, the more readily the atom accepts an electron.
Which element S or CL has a more negative electron affinity?
Answer and Explanation: The chlorine atom has a more negative electron affinity which means that it will release more energy when it accepts more electrons.
Why is the first electron affinity of oxygen negative and the second positive?
So, electron affinity of oxygen is an exothermic process and its value is negative when an extra electron is added to `O^(-)` ion, that second electron experiences a force of repulsion exerted by the negative charge of the anion. so, first this process requires supply of energy from an external source.
Which is most likely to form a negative ion?
In the given elements chlorine (2,8,7) is a non metal with highest electronegativity. Hence, it is most likely to form a negative ion with charge −1.
Rank the following elements by electron affinity, from most positive to most negative electron affin
Images related to the topicRank the following elements by electron affinity, from most positive to most negative electron affin
Which has the more negative electron affinity the bromine atom or the Br ion?
Which has the more negative electron affinity Br or Br −? Stability means lowering energy, so to become stable, which bromine wants, is to release energy. Thus, a neutral bromine atom has a very negative ΔE. By contrast, the bromide ion, Br-, already has this extra electron.
Why is the electron affinity of chlorine is more negative than fluorine?
the electron affinity of the fluorine is less than chlorine because the size of fluorine is too small as size decreases from left to right inside period, whereas chlorine has a larger size to accommodate electrons hence electron affinity of chlorine is more than fluorine.
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