Trend in periodic table

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005095564
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Joined: Wed Sep 18, 2019 12:18 am

Trend in periodic table

Postby 005095564 » Wed Oct 23, 2019 3:09 pm

So as we move across a row on the periodic table, that accounts to how many valance electrons are in the outer shell. What does going down the periodic table mean?

AVerma_F19
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Re: Trend in periodic table

Postby AVerma_F19 » Wed Oct 23, 2019 3:10 pm

Yes you are correct. And going down the table means that you get more energy levels.

Haley Dveirin 1E
Posts: 101
Joined: Sat Jul 20, 2019 12:17 am

Re: Trend in periodic table

Postby Haley Dveirin 1E » Wed Oct 23, 2019 3:24 pm

Yes, going down the table adds shells so the atomic radius gets bigger and the quantum number n increases.

Ananta3G
Posts: 62
Joined: Wed Sep 18, 2019 12:19 am

Re: Trend in periodic table

Postby Ananta3G » Wed Oct 23, 2019 3:29 pm

Yes, the number of valence electrons increases as you go across a period which connects to the other trends that a) ionization energy increases as you cross a period from left to right because the outer shell is more and more stable because they are filling the octets of valence electrons and thus these atoms do not want to lose an electron and b) the valence electrons are being pulled closer to the nucleus because of the increasing number of protons which causes a decrease in atomic radius.

Subashni Rajiv 1K
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Joined: Wed Sep 18, 2019 12:16 am

Re: Trend in periodic table

Postby Subashni Rajiv 1K » Wed Oct 23, 2019 3:50 pm

Typically when moving down the periodic table and towards the left corner, the atomic radius gets bigger.

Hannah Romano 4D
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Joined: Sat Aug 24, 2019 12:18 am

Re: Trend in periodic table

Postby Hannah Romano 4D » Wed Oct 23, 2019 3:57 pm

Going down the columns of the periodic table, elements exhibit similar characteristics due to identical valence electron structure. For example, H, Li, Na, and K all have one valence electron in the outer shell s-orbital. These are all highly reactive elements that are quick to give up this outer electron and form ionic bonds.

Leyna Dang 2H
Posts: 104
Joined: Thu Jul 25, 2019 12:17 am

Re: Trend in periodic table

Postby Leyna Dang 2H » Wed Oct 23, 2019 4:18 pm

Going down the table, elements in the same column, or group, have the same number valence electrons and share similar characteristics.


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