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First EA is usually exothermic as energy is released when the nucleus attarcts an electron is larger than the energy taken in to overcome their inter-electronic repulsion. Second EA is always endothermic since electron is added to a negative ion. Energy is needed to overcome the repulsion between the two negatively charged species.
What else can I help you with?
Does the addition of two electrons or removal of one electron require more energy for an oxygen atom?
when adding two electrons to the oxygen atom yep! it requires more energy because it has to take them from another atom so it will be removing an electron using more ionization energy to do the work.and we must remember that oxygen needs two electrons to attain its valency then it needs to take two from another atom to be fully filled and without the two electrons it will still lack electron to be stable.this means adding or removing requires energy.
Where are the two reactants in cellular respiration?
The two reactants in cellular respiration are glucose and oxygen. Glucose is broken down in a series of chemical reactions to release energy, and oxygen acts as the final electron acceptor in the electron transport chain to produce ATP.
How many electron groups are in of2?
10 because there are 20 Valence Electrons that are pairing up.
What must oxygen do to electrons to attain noble gas status?
Oxygen must gain two electrons to attain noble gas status, which means having a complete outer electron shell. This would give oxygen a full valence shell, similar to the nearest noble gas, neon.
What stage of cell respiration uses oxygen?
The oxygen molecules that you breathe are actually used in the last part of aerobic respiration. They are the final electron acceptors in electron transport chain.
Does the addition of two electrons or removal of one electron require more energy for an oxygen atom?
when adding two electrons to the oxygen atom yep! it requires more energy because it has to take them from another atom so it will be removing an electron using more ionization energy to do the work.and we must remember that oxygen needs two electrons to attain its valency then it needs to take two from another atom to be fully filled and without the two electrons it will still lack electron to be stable.this means adding or removing requires energy.
What value of different electron affinity will give you an ionic bond?
An ionic bond forms when there is a large difference in electron affinity between two atoms. Typically, one atom has a high electron affinity (strongly attracts electrons) and the other atom has a low electron affinity (weakly attracts electrons), leading to the transfer of electrons from one atom to the other to form charged ions that are held together by electrostatic forces.
Why the electron affinity is important?
Electron affinity for an atom is important to make it as a molecule.where atom is a small single one and molecule is the combination of two or more atoms.electron affinity is just a desire for attraction of electron by the atom.for example : We should have some affection for others to become their close relation like friends and live together in the same way a single atom should have desire [that is framed as ELECTRON AFFINITY] for electrons to be attached to form molecule
Why the addition of two electrons or removal of one electron requires more energy in oxygen atom?
Type your answer here... when adding an electrons to oxygen it needs more energy in electron affinity in order to attract electrons from other atoms to be stable.and we know that oxygen is in short of two electrons.so in the other hand when an electron is removed from oxygen it will be unstable and will be needing more ionization energy to be able to remove an electron to it.Thus mean indeed when adding or removing electrons for oxygen it requires energy.
How many time greater is the affinity of hemoglobin for carbon monoxide greater than the affinity of hemoglobin for oxygen?
The affinity of hemoglobin for CO is roughly 20,000 times greater than that of oxygen in vitro. In vivo, the affinity of hemoglobin for CO is roughly 200-225 greater than that of oxygen. ------------------------------------------------------------------------------------------------- O2 has stronger bond than CO. Therefore, the oxygen in CO loves the iron in the hemoglobin as iron ends with two electrons which complete the 6 electrons in the oxygen. In vivo, the affinity of hemglobin for CO is about 153 from 141x153/141. by amin elsersawi
Which have more electron shells oxygen or sulfur?
Both oxygen and sulfur have the same number of electron shells, which is two.
How many electron shells have electrons in them for oxygen?
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
Why electron affinity of dinegative ion is endothermic?
When an electron is added to a dinegative ion, it is already in a very stabilized state due to the presence of two extra electrons. Adding another electron would result in electron-electron repulsions and destabilize the system, requiring energy input. This leads to an endothermic process for adding an electron to a dinegative ion.
How would you describe the electron geometry around oxygen in water?
The electron geometry around oxygen in water is tetrahedral. This is because oxygen in water has two lone pairs of electrons and forms two sigma bonds with the two hydrogen atoms, resulting in a tetrahedral arrangement of electron pairs around the oxygen atom.
What has to happen in order for an atom to lose two electrons?
The contact with an atom having a high affinity for electrons.
Does sulfur have more electron shells than oxygen?
Yes sulfur does have more electron shells than oxygen.
What is chemical affinity?
I'm quite sure what is being referred to here is "electron affinity". Electron affinity is a routine college freshman chemistry concept. So, out of a textbook: "The energy that accompanies the addition of an electron to a gaseous atom to form an anion" An anion is a negatively charged ion. The most electro-negative element, fluorine, releases the most energy when it reacts with an electron. Fluorine, like oxygen, nitrogen and most gases (except the "inert" or "noble" gases) are DI-atomic. So fluorine is F2 (the 2 should be a subscript). But this reaction assumes mono-atomic fluorine (also called "nascent"). The the reaction is: F + e- ---> F- And this releases 328 kilo-joules of heat per mole.
