Atomic Radius

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Maggie Doan 1I
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Joined: Fri Sep 28, 2018 12:24 am

Atomic Radius

Postby Maggie Doan 1I » Sun Nov 04, 2018 5:08 pm

What is the effect of electrons on the size of the atom?

Mikka Hoffman 1C
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Joined: Fri Sep 28, 2018 12:23 am
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Re: Atomic Radius

Postby Mikka Hoffman 1C » Sun Nov 04, 2018 5:33 pm

Atomic radius increases down a group because shells are added with more electrons, so the size of the atom increases. It decreases down a period, though, because the electrons are attracted to the greater number of protons in the nucleus, pulling the electrons in closer.

Posts: 99
Joined: Fri Sep 28, 2018 12:17 am

Re: Atomic Radius

Postby AlyssaBei_1F » Sun Nov 04, 2018 5:39 pm

Electrons are equal to the number of protons. If an element has more protons, then it will have more electrons, causing the element to have more shells and be bigger.

Catly Do 2E
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Joined: Fri Sep 28, 2018 12:24 am

Re: Atomic Radius

Postby Catly Do 2E » Sun Nov 04, 2018 5:40 pm

An easy way to memorize how the atomic radius trends are to consider how electrons and protons are attracted to each other.

Heidi Ibarra Castillo 1D
Posts: 60
Joined: Fri Sep 28, 2018 12:19 am

Re: Atomic Radius

Postby Heidi Ibarra Castillo 1D » Sun Nov 04, 2018 6:37 pm

so it is based off the attraction of the protons and electrons?

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