Posted by lavonne on Tuesday, November 23, 2010 at 3:20pm.
I have a big exam tomorrow. Can anyone tell me any easy way to figure out the 4 quantum numbers, n, l, ml, and ms. i still get confused especially with the n and ml!

chemistry Please help!  DrBob222, Tuesday, November 23, 2010 at 4:53pm
Four quantum numbers. Four rules to remember. That makes it easy.
n = 1, 2, 3, 4, etc in increments of 1.
l = 0, 1, 2, etc up to a max of n1.
ml = l to +l in increments of +1 (including 0)
ms = two values; either +1/2 or 1/2
So l depends on n. ml depends on l
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