determining electronegativity

[Giovanni Anguiano-Gutierrez 3L]

How do you determine electronegativity?

[Vincent Leong 2B]

electronegativity is just the tendency for an atom to gain electrons. If you think of it logically, atoms on the further right side of the periodic table would want to get one electron in order to reach the most stable form (aka noble gas configuration)

[chemboi]

I don't think we have learned how to calculate actual values. We should know relative values, however.

[Anne Tsai 1F]

You would have to be given an electronegativity table to know the exact electronegativities of each atom, but generally you can follow the periodic trend (electronegativity increases across a row and decreases down a group).

[Kaylee Clarke 1G]

the periodic trend of electronegativity is increasing up and to the right of the PT

[IreneGi2I]

I don't think we would have to know how to calculate the actual electronegativity values. Since electronegativity is how strong an atom attracts electrons, you can memorize that fluorine has the strongest electronegativity on periodic table to find the general trend. F is located on the upper-right corner of the periodic table, it is easier to memorize that electronegativity increases from left to right and bottom to top!

[Rohit Srinivas 2D]

This is outside of the scope of this class, but it was cool so I searched it up. There is a person named Linus Pauling who made a scale to measure electronegativity from 0.79-3.98 (1-4). He assigned Flourine to be 4, and then calculated the rest through experimental observation. This is known as the Pauling scale. It is measured in Pauling units.

[705340227]

You can also look at how atoms' electrons behave in chemical bonds to determine the comparative electronegativity of the elements in the compound.

[Sean Phen]

I do not know the way to determine electronegativity, but there is a periodic trend for electronegativity which indicates the increasing electronegativity.

[Binyu You]

Based on what Dr. Lavelle said, I think it depends on both ionization energy and electron affinity. The higher the ionization energy and electron affinity is, the higher the electronegativity is, thus meaning more shared electrons are being pulled toward it. The lower the ionization energy and electron affinity is, the lower the electronegativity is, meaning electrons are pulled further away.

[jessicasilverstein1F]

One thing that helps me is using the acronym FONClBrISCH from F being most electronegative in the periodic table

[aashmi_agrawal_3d]

It increases to the right and decreases going down. You can also remember that fluorine is the most electronegative element to help you remember this trend.

[Izamary Marquez 2H]

With this being said, the closer the elements are in electronegativity, the more affinity they have, correct? I remember Lavelle saying something about this but I can't remember the exact rule..

[Alejandro Gonzalez 2G]

I don't think we've learned how to actually calculate electronegativity, just the trends in the periodic table (which for electronegativity, increases across a period and decreases down a group).

[Caelin Brenninkmeijer 1G]

It also helps to use the periodic trends. Electronegativity is calculated using ionization energy and electron affinity, so if ionization energy and electron affinity are high, then the atom will also have a high electronegativity. You can figure out the ionization energy and electron affinity by using period trends- both increase up a group and across a period.

[Diana Aguilar 3H]

I was also having trouble with determining electronegativity, thank you to everyone for the clarification, it really helped!

[Namratha Gujje]

I don't think we need to know a way to calculate the electronegativity of an atom. We do need to know the electronegativity trend on the periodic table of elements. It also wouldn't hurt to know what the most electronegative elements are. They are fluorine, oxygen, and nitrogen. I like to remember them by the term FON.

[Gustavo_Chavez_1K]

We can't necessarily determine an exact value for electronegativity, but what this class wants us to focus on is the period trend. So electronegativity increases when going up and to the right of the periodic table. This would make fluorine the most electronegative element on the table.

[LovepreetSran_3H]

We're focusing more on the trend. Electronegativity increases as you move up and to the right on the periodic table.

[505612629]

I believe we've learned the trends of electronegativity of elements on the periodic table. (those closer to reaching octet by gaining electrons on the right vs those on the left)

[Mehreen 3I]

You will not need to know the specific calculations of electronegativity and if you do, they will be given to you. Just know the general trend of electronegativity and it is similar to ionization energy as mentioned in the lecture. The electronegativity of atoms increases as you move from left to right across a period in the periodic table.

[Chinmayi Mutyala 3H]

Electronegativity increases as you go to the right and it decreases as you go down on the periodic table.

[Brian_Wu_3B]

Top right corner (F) should be the most electronegative. As you move left or down, the electronegativity decreases

[Mia Meza]

We haven't really learned how to calculate electronegativity but we do need to know the concept. What helps me is knowing that the left is more electronegative. The closer it is to F than I know it is more electronegative :)

[LeahSWM 2E]

On the periodic table, electronegativity increases from bottom to top in groups, and increases from left to right across periods!

[Dominic Benna 2E]

It increases as you go right across a period, and it decreases as you go down a group. So, Florine, for example, is the most electronegative atom.

[Jeremy Wei 2C]

The trend in the periodic table is that electronegativity increases left to right in periods / top to bottom in groups!

[Sondia Luong 1C]

If you ever have to calculate electronegativity, don't worry because the answer should already be given in the problem or on a periodic table! There are trends on the periodic table to determine levels of electronegativity. Electronegativity increases from left to right and decreases from top to bottom. It's useful to also know that fluorine has the highest electronegativity.

[asalest 2K]

I just follow the periodic table trend. Electronegativity increases from left right and down up!

[Susan Chamling 1F]

The general periodic trend for electronegativity is that it increases from left to right for periods and down to up for groups.

[Rose_Malki_3G]

Electronegativity is essentially an atom's pull on electrons. The trend is that electronegativity increases as you go across a period and decreases as you go down a group

[Muskaan Abdul-Sattar]

I think you should just be aware of its trend, it increases as you move up and to the right of the periodic table.

[Lindsey Walter 3E]

Remember the trend! Electronegativity increases as you move up and to the right on the periodic table, making fluorine the most and francium the least. We won't know the exact electronegativity values unless they are provided.

[Alexis Rempillo 3B]

I also thought before that we might need to do some calculations, but I think we only need to know the general trend of electronegativity (increases up a column and across the period). If we do need to do something with it in a calculative sense, I believe we'll be given the information.

[Arden Napoli 1E]

Hi,

Electronegativity is the atom's ability to attract shared electrons to itself. The important trends to remember about electronegativity is that it increases as you go left to right across the periodic table and decreases as you go top to bottom on the periodic table.

[Sofi Ghasemzadeh 2G]

In short, electronegativity is the tendency of an atom to gain electrons. We do not know how to calculate it, but we did learn the periodic trend: electronegativity increases across a period and decreases down a group.

[605607825]

Hello,

As of right now I don't believe we have been taught how to calculate the value of electronegativities however you can determine this by looking at a periodic table. When you look at a periodic chart know that electronegativity increases as you move upwards and to the right. Additionally it decreases as you move down and to the right. A good trick to remember this is to keep in mind that Fluorine (F) is the most electronegative and it is one of the farthest to the right and at the top. I hope this helps!

[Rishab_Haldar_3B]

You can determine the relative electronegativity of an element by looking at its location on the periodic table. Electronegativity increases as you move left to right across a period and increases as you move up a group.

[isabella garcia - 1G]

I don't think we will have to determine electronegativity, but we can figure out which elements are more/less electronegative relative to other elements by looking at the periodic table. Electronegativity increases as you move right across a period and decreases going down a group.

[Caitlyn Lo 2F]

Electronegativity is the tendency of an atom to gain electrons and the trend on the periodic table for this is that electronegativity increases across a period and decreases down a group.

[Olivia Ghorai 1J]

There are two different definitions in the textbook for how to calculate electronegativity in section Focus 2D. But to my knowledge, all Lavelle taught us about electronegativity is that it relates to electron affinity and that it increases across a period and decreases down a group.