Electronegativity Calculation

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taiyeojeikere-3C
Posts: 30
Joined: Fri Sep 28, 2018 12:26 am

Electronegativity Calculation

Postby taiyeojeikere-3C » Fri Nov 02, 2018 9:42 pm

How do we calculate the electronegativity of an atom, or is it something that we have to estimate?

Karishma_1G
Posts: 67
Joined: Fri Sep 28, 2018 12:18 am

Re: Electronegativity Calculation

Postby Karishma_1G » Fri Nov 02, 2018 9:44 pm

I don't think we've learned how to calculate it so we just have to estimate it based off of the periodic trend for electronegativity (Fluorine is the most electronegative).

Jessica Helfond 2F
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

Re: Electronegativity Calculation

Postby Jessica Helfond 2F » Sat Nov 03, 2018 10:22 pm

There's also a periodic table with the elements and their electronegativity numbers, but I'm pretty sure Lavelle said we don't have to memorize the exact values. If we needed to know the precise numbers, it would be given to us.

Archana Biju 1G
Posts: 29
Joined: Fri Sep 28, 2018 12:18 am

Re: Electronegativity Calculation

Postby Archana Biju 1G » Tue Nov 06, 2018 5:58 pm

You just have to know the trend of electronegativity on the periodic table and also the idea behind it - which is how easily an atom can attract a bonding pair of electrons. Ex: F needs only one more electron to reach a stable state so it's highly electronegative.

Venya Vaddi 1L
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Joined: Fri Sep 28, 2018 12:16 am
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Re: Electronegativity Calculation

Postby Venya Vaddi 1L » Thu Nov 08, 2018 6:16 pm

We won't be asked to calculate electronegativity, but it is calculated using measured values of electron affinity and ionization energy.

Angela Grant 1D
Posts: 67
Joined: Fri Sep 28, 2018 12:25 am

Re: Electronegativity Calculation

Postby Angela Grant 1D » Thu Nov 08, 2018 6:31 pm

In the book the equation for electronegativity is given as the average of ionization energy and electron affinity. But in lecture Dr. Lavelle said we'd just be given the table of values if we need to use them on a test so we probably don't need the equation


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