Trends?  [ENDORSED]

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Guadalupe T 1E
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Joined: Fri Sep 29, 2017 7:04 am

Trends?

Postby Guadalupe T 1E » Tue Dec 05, 2017 9:40 am

What are the trends we have gone over in class? I know for sure there is atomic size and electronegativity.

jillian1k
Posts: 54
Joined: Sat Jul 22, 2017 3:00 am

Re: Trends?

Postby jillian1k » Tue Dec 05, 2017 9:52 am

The periodic/group trends we've covered are atomic radius, ionic radius, ionization energy, electron affinity, and electronegativity. Also, I guess technically electropositivity, but this is just the exact opposite of electronegativity (and if I recall correctly, the only time it was used was for a homework problem or two).

diangelosoriano
Posts: 49
Joined: Fri Sep 29, 2017 7:07 am

Re: Trends?

Postby diangelosoriano » Sat Dec 09, 2017 7:12 pm

You should also be sure to be aware of the exceptions to the periodic trend rules. (Ex: noble gases not being included in the general electron affinity general trend)

SamanthaGrohe1B
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Joined: Fri Apr 06, 2018 11:03 am

Re: Trends?

Postby SamanthaGrohe1B » Sun May 13, 2018 11:21 pm

you should remember the trends but also keep in mind how not every element follows these trends perfectly as the organization of the periodic table does not perfectly account for all of the features of these elements.

breannasung_1K
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Joined: Fri Apr 06, 2018 11:05 am

Re: Trends?

Postby breannasung_1K » Mon May 14, 2018 2:08 am

we have gone over: atomic #, # of shells, atomic radius, effective nuclear charge, electronegativity, first ionization energy and electron affinity.

nelquosey
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Joined: Fri Apr 06, 2018 11:02 am

Re: Trends?  [ENDORSED]

Postby nelquosey » Mon May 14, 2018 11:11 am

We went over atomic radius, ionic radius, ionic energy and electron affinity in class.

Jordanmarshall
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Joined: Fri Apr 06, 2018 11:03 am

Re: Trends?

Postby Jordanmarshall » Mon May 21, 2018 7:37 pm

So why is Oxygen more electronegative than Chlorine?

Mariah Guerrero 1J
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Joined: Fri Apr 06, 2018 11:03 am

Re: Trends?

Postby Mariah Guerrero 1J » Mon May 21, 2018 8:02 pm

Is there a trend involved in the second ionization energy?

kendallbottrell
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Joined: Fri Apr 06, 2018 11:02 am

Re: Trends?

Postby kendallbottrell » Tue May 22, 2018 10:08 pm

Jordanmarshall wrote:So why is Oxygen more electronegative than Chlorine?


The simple answer is that going across the periodic table has a less significant impact on electronegativity than going down it does.

RubyLake1F
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Joined: Fri Apr 06, 2018 11:03 am

Re: Trends?

Postby RubyLake1F » Wed May 23, 2018 12:44 am

Mariah Guerrero 1J wrote:Is there a trend involved in the second ionization energy?


Second ionization energies are always higher than the first ionization energy for that same element (because after removing one electron, the effective nuclear pull on the remaining electrons is stronger). In terms of comparing the second ionization energies of multiple different elements I don't think we would have to do this, but I would assume it generally follows the same trends as first ionization energy.

Allen Chen 1J
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Joined: Wed Nov 15, 2017 3:04 am

Re: Trends?

Postby Allen Chen 1J » Fri May 25, 2018 2:06 pm

So far, we've went over atomic radius, ionic radius, ionic energy and electron affinity.


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