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Atomic radius

Posted: Sat Oct 20, 2018 2:55 pm
by Marsenne Cabral 1A
Can someone help clear up if the atomic radius gets bigger when electrons move from the s orbital to either the p,d,or f orbitals? I think the radius stays the same but just want clarification?

Re: Atomic radius

Posted: Sat Oct 20, 2018 3:12 pm
by 305113590
As you move from the bottom left to the upper right corner, the atomic radii decreases/becomes smaller. As you go up the group, the shelling effect decreases. Each shell decreases the attraction of the nucleus to the electrons. Going right across the period increases the proton number, thus increasing the attraction with the electron. I do not think the orbitals necessarily determine atomic radii, only shape and orientation.