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Who can help me with this problem Rank the following elements by electron affinity from most positive to most negative I have the elements Ar Cl O Sb and Rb?
RachelStewartfb5213
The order is: O, Cl, Sb, Rb, Ar.
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∙ 6y ago
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Halogen with the least-negative electron affinity?
The halogen with the least-negative electron affinity is astatine. Electron affinity and electronegativities decreases down a group. Since astatine is the last halogen located in Group 17 as you move down the column from fluorine, it has the least negative electron affinity.
Does electron affinity gain electrons?
Yes. Electron affinity is the process by which a neutral atom gains an electron and the EA is the measure of energy released. The resulting ion will be negative.
Definition of electron affinity?
The energy change that occurs when an electron is added to a neutral atom. This is usually exothermic. Noble Gases are excluded from this. Equation: X(element)+e-(electron)---------> X-1+ energy
Which element has a negative electron affinity. Is it Kr. O. Ca. He or Mg?
O because it is a 2-
How do you sort the following elements by electron affinity from most positive to most negative value bismuth chlorine helium cesium and tellurium?
After Pauling table the electronegativity of these elements are: - Argon: practically inactive - Fluorine: 3,98 - Oxygen: 3,44 - Bismuth: 2,02 - Rubidium: 0,82
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)
Halogen with the least-negative electron affinity?
The halogen with the least-negative electron affinity is astatine. Electron affinity and electronegativities decreases down a group. Since astatine is the last halogen located in Group 17 as you move down the column from fluorine, it has the least negative electron affinity.
What is the difference between electron affinity and electron gain enthalpy?
electron affinity is the negative of electron gain enthalpy. for example, the electron gain enthalpy of fluorine is -328, and electron affinity is 328 which is -(-328)
What is the meaning of a negative value for the electron affinity of an atom?
Electron affinity is the amount of energy required to remove an electron from an atom. Or an energy released by adding an electron to a gaseous atom ( ie, negative quantity). In this case, if an element has a negative Electron Affinity, its indicating that this element is stable than the neutral ones.
Why is the electron affinity of Mg lower than the electron affinity of K?
Generally, electron affinity increases (becomes less negative) in groups/families moving from top to bottom.
Who has higher electron affinity between bromine and Iodine?
According to Zumdahl, Group 7A elements (halogens) follow the expected behavior or periodicity as you follow top to bottom. The numbers (top to bottom) are getting closer to 0, so they are decreasing in electron affinity. Bromine has a higher negative # therefore it is a higher electron affinity.---papajohn
Does electron affinity gain electrons?
Yes. Electron affinity is the process by which a neutral atom gains an electron and the EA is the measure of energy released. The resulting ion will be negative.
What negative ions have a high electron affinity?
None, it has a stable structure
Which has the more negative electron affinity br or br?
Br for sure!
Are electron affinity values usually positive or negative numbers?
Positive for nonmetals and negative for metals
Why electron affinity of dinegative ion is endothermic?
Di-Negative atoms are already electron rich in nature. This causes electron affinity is less. Since energy is needed to introduce another electron into the atom the process is endothermic.
What is the second electron affinity positive or negative?
It is positive. In relation to oxygen at least.
