Electronegativity

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Siwa Hwang 3G
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Electronegativity

Postby Siwa Hwang 3G » Sat Nov 07, 2020 1:13 am

Why does Fluorine have the highest electronegativity energy?

YUNALEE
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Re: Electronegativity

Postby YUNALEE » Sat Nov 07, 2020 1:35 am

Fluorine has 7 valence electrons and wants to complete the octect so its electronegativity value is the highest at 3.8. The definition of electronegativity is the magnitude of how attracted valence electrons are. This explains why they all lose and gain electrons to become like the noble gases because they all have a complete octect.

Christine Ma 3L
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Re: Electronegativity

Postby Christine Ma 3L » Sat Nov 07, 2020 3:13 am

Electronegativity is affected by both nuclear charge and the locations/number of electrons. Fluorine is the most electronegative because it has the highest nuclear charge in its period (after Ne) and the smallest size in its group. Within a period, the most electronegative element is the one farthest to the right (excluding the noble gases) because it has the most protons and thus the greatest nuclear charge, making its "pull" on electrons greater. Within a group, the element with the smallest n is smaller will be more electronegative because there's less electron shielding (so the effective nuclear charge is higher) and the distance from the nucleus is smaller, making the electrostatic force greater. Therefore, since electronegativity increases across a period and decreases down a group, F is the most electronegative.

Aaina 2D
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Re: Electronegativity

Postby Aaina 2D » Sat Nov 07, 2020 7:40 am

Also, since fluorine only requires one more electron to make it stable (a noble gas configuration), it is highly reactive, and therefore attracts electrons very easily.

Renny_kim_2G
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Re: Electronegativity

Postby Renny_kim_2G » Sat Nov 07, 2020 9:39 am

A lot of people answered the reason, but I just want to make a side note that knowing the electronegativity trend might be really helpful. It just makes our lives easier. While you are at it, might as well check out the trend for atomic radius as well.

Anastasia Yulo 1C
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Re: Electronegativity

Postby Anastasia Yulo 1C » Sun Nov 08, 2020 12:05 pm

Fluorine is the most electronegative element because it has 5 electrons in it's 2P shell. Because it only requires 1 electron to reach stability, it is highly reactive.

Luveia Pangilinan 1A
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Re: Electronegativity

Postby Luveia Pangilinan 1A » Sun Nov 08, 2020 12:17 pm

I think it's because it only needs one more electron in it's 2P orbital and the only one that has come close to having a full 6 making it have the highest electronegativity.

Sabrina Galvan 3J
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Re: Electronegativity

Postby Sabrina Galvan 3J » Sun Nov 08, 2020 8:52 pm

It's the most electronegative because of its orbital 2P which optimally would contain six electrons. Because Fluorine only has five, it's attraction is due to being so close to its most stable configuration, making it the most electronegative.

Muskaan Abdul-Sattar
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Re: Electronegativity

Postby Muskaan Abdul-Sattar » Sun Nov 08, 2020 11:04 pm

Fluorine is highly reactive because it only requires 1 electron to reach stability.

LovepreetSran_3H
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Re: Electronegativity

Postby LovepreetSran_3H » Sun Nov 08, 2020 11:07 pm

Fluorine is the most electronegative because it only requires one more electron to reach stability.

Manseej Khatri 2B
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Re: Electronegativity

Postby Manseej Khatri 2B » Sun Nov 08, 2020 11:09 pm

Hi. Electronegativity is the measure of an elements "electron pulling ability." Florine has a high electron affinity as it only needs one electron to complete it's shell and it is small meaning its electrostatic forces are high, so it would as a result have a high electron pulling ability and thus is highly electronegative.

America Alvarado
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Re: Electronegativity

Postby America Alvarado » Sun Nov 08, 2020 11:11 pm

So the more valence electrons an atom has, the higher its electronegativity?

Andrew Yoon 3L
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Re: Electronegativity

Postby Andrew Yoon 3L » Sun Nov 08, 2020 11:26 pm

Fluorine is the electronegative because it has 7 valence electrons. It only needs one more electron in order for it to have a noble gas configuration (electron octet). Therefore, it easily attracts electron and is highly reactive.

Bai Rong Lin 2K
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Re: Electronegativity

Postby Bai Rong Lin 2K » Sun Nov 08, 2020 11:28 pm

Siwa Hwang 3G wrote:Why does Fluorine have the highest electronegativity energy?

Fluorine is really highly reactive as it only needs one more electrons.

Nicoli Peiris 1B
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Re: Electronegativity

Postby Nicoli Peiris 1B » Sun Nov 08, 2020 11:53 pm

Fluorine has the highest electronegativity because as you go across a period or up a column of the periodic table the electronegativity of an atom increases!

David Liu 1E
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Re: Electronegativity

Postby David Liu 1E » Mon Nov 09, 2020 1:58 am

flourine only needs one electron, which means that it has a high electronegativity as it doesn't need a lot of electrons to fill it's outer shell

Sejal Parsi 3K
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Re: Electronegativity

Postby Sejal Parsi 3K » Mon Nov 09, 2020 4:18 am

This because it only needs one electron to complete its shell, so it is highly reactive.


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