All Questions
Tagged with periodic-trends electron-affinity
18
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Why does chlorine have a higher electron affinity value than fluorine? [duplicate]
Why does chlorine have a higher electron affinity value than fluorine? Since this periodic property tends from the bottom up (in the group), the logic would be that the fluorine is the element with ...
-3
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1
answer
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Confusion regarding 1st and 2nd electron gain enthalpy
$\ce{O}$ has the 1st electron gain enthalpy $\pu{-141 kJ mol-1}$. $-ve$ value implies that energy is released when electron is added to an isolated atom. This also means that if $\pu{141 kJ}$ energy ...
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Why do selenium , tellurium and polonium have more negative electron gain enthalpy than oxygen?
In my book(NCERT Chemistry Part I, Textbook for Class XI[1]) a list of values of electron gain enthalpies of various elements is given. According to that list, oxygen has less negative electron gain ...
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Find the Ionisation Potential and Electron affinity of X
$N_0/2$ atoms of $X_{(g)}$ are converted into $\ce{X^+_{(g)}}$ by energy $E_1$. $N_0/2$ atoms of $X_{(g)}$ are converted into $\ce{X^-_{(g)}}$ by energy $E_2$.
Hence ionisation potential and electron ...
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3
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Is the magnitude of ionisation enthalpy and ionisation energy is same?
In my textbook it is written that ionisation energy and ionisation enthalpy are two different quantities. ionisation energy is the amount of energy provided to extract an electron from the outermost ...
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Why does the electron affinity increase become more exothermic down group 2 and group 5?
It is generally true that the electron affinity becomes less exothermic down a group, because of the increase in atomic radius.
There is a well-known exception that the electron affinity of Cl is ...
- 2,109
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Why it the electron affinity of beryllium is greater than nitrogen? [closed]
As we know that fully filled electronic configuration is more stable than half filled electronic configuration, so in my opinion beryllium's electron affinity should be less than nitrogen's.
Is my ...
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Why does oxygen have less negative electron gain enthalpy than sulphur? [duplicate]
Oxygen has less negative electron gain enthalpy than sulphur.
This statement is given in my book with a short reason:
due to compact size of oxygen
I'm unable to understand why. I would ...
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Trend of second Electron Affinity for N,O,F,P,S,Cl
I am aware of the definition of electron affinity and electron gain enthalpy (EGE). N has positive EGE1, and EA of P,S,Cl is more than N,O,F respectively. I want to arrange them in order of their EA2 ...
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On a periodic table it shows that Zn and Cd and Hg all have 0 electron affinity. Why is that?
Question
On a periodic table it shows that Zn and Cd and Hg all have 0 electron affinity. Why is that?
What I've noticed
I've noticed that these three elements are the end of the D orbital and they ...
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If fluorine has a lower electron affinity than chlorine, why does it have a higher ionization energy?
I have read that fluorine has a lower electron affinity than chlorine despite its lower atomic radius because its electron cloud is extremely dense. If this is the case, shouldn't the ionization ...
user28295
8
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3
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Why do alkali metals have an exothermic electron affinity?
Alkali metals should have positive electron gain enthalpies as they are electropositive elements and also their atomic sizes are larger in their periods so they should be reluctant to take electrons ...
- 111
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2nd Electron Affinity of halogens
I have seen questions regarding EA but they were all about the 1st EA so this question is not duplicate.
I came across a statement which goes like "2nd EA of halogens is almost zero". How is this ...
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Ionization energy and Electron Affnity
Which of the following statements correctly interprets the relationship between ionization energy, atomic radius Electron affinity when comparing two atoms.
The correct choice as per my instructor ...
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Which element has a greater second electron affinity, sulfur or oxygen?
I found a question asking the above which states that sulfur has a lesser second electron affinity than oxygen. But since the inter-electronic repulsion in sulfur is lesser, shouldn't it be willing to ...
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