Write a full set of quantum numbers for the following:
a) The outermost electron in an Rb atom.
b) The electron gained when an S ion becomes an S2 ion.
c) The electron lost when an Ag atom ionizes.
d) The electrom gained when an F ion forms from an F atom.
How do I do this? I just don’t understand.
Thanks.
2 Answers

They’re looking for the four quantum numbers (n, l, m(l), and m(s)) that describe the electron.
a) Outermost electron in rubidium is a 5s electron, so its 4 quantum numbers would be 5, 0, 0, +1/2 (could be 1/2 as well, as it could be spinning in either direction).
b) Electron picked up by S to become S2 would go into a 3p orbital (any one of three) so a possible would be 3, 1, 0, 1/2 (third number can be 1, 0, or 1, fourth number can be +1/2 or 1/2)
c) The electron that Ag loses when it becomes Ag+ is the 5s electron (ground state for Ag is 5s1 4d10, not 5s2 4d9), so once again it would be 5, 0, 0, +1/2
d) When F becomes F, the electron it picks up goes into a 2p orbital. Just like b), you have a number of possibilities, such as 2, 1, 1, 1/2 (3rd number can be 1, 0, or 1, fourth can be +1/2 or 1/2).

i’m getting into this previous due so i’m going to merely upload here comments when you consider that, for the main section, I accept as true with zo maar’s answer. The hydrogen atom partition function diverges as a results of putting the atom in an empty universe; in result, we’ve an countless quantity of quantum capability stages without capability. So, definite, the threat of the electron leaving the proton in a universe without different capability is largely 0. consequently, it is lots constrained to orbital n=a million. in any different case, particular conservation regulations could be violated. of path, this would be a mathematical build, and as such, no longer in accord with fact. in many circumstances, the atom bumps into the universe some r=rb*n^2 gadgets of distance away. This choose no longer be the case while thinking photon baths. So, the character, density, and temperature of the tub is significant while scaling the actual length of our atom(s) and as a result the threat that it/they are going to grow to be excited or ionized for the duration of a few span of time. while the gap between the tub debris and atom starts to scale as rb*n^2, for example, better orbitals are effectively cutoff.