What are the quantum numbers of the fifth electron of Na

The last electron is in third shell, so Principal quantum number will be 3 .

The azimuthal quantum no. Can be 0,1,2, but as it is the first electron in last shell so the second quantum no. Will be 0 .

Since the second quantum no. is 0, so the magnetic quantum no. will also be 0.

The spin quantum no. will be +1/2, by hund's rule.

false

because it does not have the potential to be entirely used up

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.