Page 1 of 1

quantum numbers

Posted: Sun Jul 07, 2019 11:10 am
by hannabarlow1A
What does it mean that m(l) is related to the orientation of an orbital? Could someone explain what m(l) really tells us?

Re: quantum numbers

Posted: Sun Jul 07, 2019 1:38 pm
by Chem_Mod
m(l) describes orientation because take for example the p block, where the shapes look like dumbells. However, that one dumbbell shape can have 3 different orientation, where the dumbbell aligns on the x, y, or z axis. Which is why m(l) has 3 numbers to describe the three different orientations, -1, 0, 1. That is why an s orbital can only have one orientation because it is a ball, you cannot make it lie a different way on any of the axes.