The n value for the Li2+ ion in the Bohr model of the atom is not directly applicable since the question is misworded; it should inquire about the Z value instead. The nuclear charge (Z) for lithium is +3, as Li2+ has three protons in its nucleus. The equation used, E = -2.178 x 10-18 J(z2/n2), is correct, but the focus should be on identifying Z rather than solving for n. Thus, the problem simplifies to recognizing the nuclear charge rather than calculating energy levels.
PREREQUISITESStudents studying atomic physics, educators teaching the Bohr model, and anyone interested in understanding the behavior of ions in quantum mechanics.
nasu said:z is the charge of the nucleus and is not 1 for Li.
For the rest, it may help to post the complete text of the problem.
Yes.physicsnobrain said:IF the question is instead: In the equation for the bohr model of the atom, what is the z value for Li2+ ion?
Does this make more sense?
DrClaude said:Yes.
physicsnobrain said:Well isn't there still three unknown variables Energy and n value and z value?
You had the right equation in the OP. Go back in your notes/textbook and find what the ##Z## stands for.physicsnobrain said:The question exactly as it appears word for word is: In the equation for the Bohr model of the atom, what is the Z value for Li2+ ion?
I am still unsure of how to go about this question. Which equation should I use?
DrClaude said:You had the right equation in the OP. Go back in your notes/textbook and find what the ##Z## stands for.
Borek said:And what is nuclear charge for lithium?