Which element has the highest electronegativity and why?
Which element has the highest electronegativity and why?
fluorine
Why does fluorine have a higher electronegativity than chlorine?
Fluorine is more electronegative than chlorine because fluorine is smaller and has its electrons closer to the positively charged nucleus. …
Why does fluorine have a higher electronegativity than helium?
Fluorine, compared to other elements is more Electronegative because it requires only one electron to complete an octate and attain stability, and the distance at which valence electrons reside is the minimum as compared with other elements having 7 electrons in the outermost orbit.
Why does fluorine have the highest electronegativity ionization energy and electron affinity among the elements except the noble gases?
Therefore, fluorine has the highest electronegativity out of all of the elements. Because fluorine has seven valence electrons, it only needs one more electron to acheive a noble gas configuration (eight valence electrons). Therefore, it will be more likely to pull off an electron from a nearby atom.
What is a negative electron affinity?
Electron Affinity is the energy associated with the addition of an electon to a gaseous atom. A more negative electron affinity corresponds to a greater attraction for an electron. (An unbound electron has an energy of zero.)
Do noble gasses have high electron affinity?
The major exception to this rule are the noble gases. They are small atoms and do follow the general trend for ionization energies. Any electrons added to a noble gas would have to be the first electron in a new (larger) energy level. This causes the noble gases to have essentially zero electron affinity.
Do noble gases have high electron affinity?
Re: Noble Gases Because noble gases have a full octet, their ionization energies are actually quite high. Electron affinity is the amount of energy released when an electron is added to a neutral atom. Because noble gases have stable electron configurations, they have very low electron affinities.
Does oxygen have a higher electron affinity than fluorine?
Electron affinity follows the trend of electronegativity: fluorine (F) has a higher electron affinity than oxygen (O), and so on.
Why the electron affinity of nitrogen is less than oxygen?
As a result, you need energy to add an electron to nitrogen, and hence its electron affinity is actually negative. Because the effective nuclear charge overpowers this repulsion, and energy is being released when an electron is being added to oxygen, hence the electron affinity will be positive.
Why oxygen has higher electron affinity than nitrogen?
The p orbital of carbon is empty and it is unstable due to which its affinity to gain incoming electron increases. In case of Nitrogen (7) and Oxygen (8) ……the oxygen atom have more attracting power of electrons towards its nucleus than nitrogen, so, it will be more electron affinity than nitrogen.
Why is there a decrease in electron affinity on going from C to N?
On moving across the period from C to N the atomic size increases the nuclear force of attraction decreases leading to the decrease in the electron affinity as force needed to attract an electron becomes less.
Which has more electron affinity nitrogen or phosphorus?
Nitrogen has greater electron affinity than phosphorus .
Is electron gain enthalpy of phosphorus positive?
Nitrogen has small size as compared to phosphorous, it required extra energy to add an electron as it is an endothermic action therefore the electron gain enthalpy of nitrogen is more positive than phosphorous.
Why phosphorus has more electron gain enthalpy than nitrogen?
Reason (R) Nitrogen has more electron gain enthalpy than phosphorus. Answer: N2 is less reactive than P4 due to high value of bond dissociation energy which is due to presence of triple bond between two N2 atoms of Ng molecule. …
Why nitrogen is more stable than phosphorus?
Pentavalence in phosphorus is more stable when compared to that of nitrogen even though they belong to same group is due to large size of phosphorus atom and greater ability to accommodate electrons.