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Radii Trends

Posted: Mon Oct 21, 2019 11:33 pm
by 904914037
Are the trends for atomic radii the same for that of ionic radii and covalent radii?

Re: Radii Trends

Posted: Mon Oct 21, 2019 11:44 pm
by MAC 4G
I know that both atomic and ionic radii follow the same trend on the periodic table. Generally, radius decreases moving across a period (row) and increases moving down a group (column). As for covalent, I'm not 100% sure and I don't want to give you the wrong information. Sorry.

Re: Radii Trends

Posted: Tue Oct 22, 2019 12:58 am
by Natalie Nartz 4F
Yes atomic, ionic, and covalent radii all share the same trend. Radius decreases across a period, and increases down a group

Re: Radii Trends

Posted: Tue Oct 22, 2019 2:00 am
by Amy Pham 1D
The only difference is in the cations and anions that form the ionic bonds. Cations are smaller than their parent atoms because they have a more positive charge and the nucleus holds more tightly to its electrons. And anions are bigger than their parent atoms because they have more electrons to experience electron-electron repulsion.