How are the sizes of the different atoms determined?

Question

For example K, Fe, Cu, Na...atoms sizes compared to each other.

Answer 1

The trend tends to be that atoms get larger as you move down the periodic table, and smaller as you move from left to right. They get larger going down because of the higher energy levels that are being occupied by the electrons n=1, n=2, etc. Going from left to right, they get smaller because the energy levels accross a period are fairly degenerate (have the same energy) but the net charge on the nucleus is getting larger (more protons). This causes the nucleus to pull the electrons closer and thus make the atoms "smaller."

Answer 2

An electrons angular momentum is an same as: L = (h/2*pi)sqrt(l(l+a million)) plugging 0 into the formulation does produce 0. So, convinced, l=0 ability 0 angular momentum. undergo in ideas that an electron nonetheless has non-0 intrinsic spin, so once you position it right into a magnetic field that alterations intensity in some direction then the electron will act as no matter if that is spinning. also, those quantum variables fall out of the partial differnential wave equation (shrodigners (sp)). What you do to bathe up that is you want to make a subsitution that permits you to seperate the equation into 3 seperate problem-free differential equations. those can then be solved for diverse values of l,m, and n.

Answer 3

by weight and electrons

Answer 4

In the lab, you can use the NMR...