A quantum number is a number that is used to analyze the different energy levels that atoms may access, which can be defined as follows:
Quantum number:
The quantum number is the phase of an atom or ion that is defined by 4 quantum numbers that produce solutions to the Schrödinger wave equation for the hydrogen atom.
For (n,l, [tex]m_{l} ,\ m_s[/tex]) =(2,1,0, [tex]+\frac{1}{2}[/tex])
electron in 2p shell
For (n,l, [tex]m_{l} ,\ m_s[/tex]) =(3,0,0,[tex]-\frac{1}{2}[/tex])
electron in 3s shell
For (n,l, [tex]m_{l} ,\ m_s[/tex]) =(2,0,0, [tex]+\frac{1}{2}[/tex]))
electron in 2s shell
For (n,l, [tex]m_{l} ,\ m_s[/tex]) =(3,2,1, [tex]-\frac{1}{2}[/tex])
electron in 3d shell
we know that electrons in various shells are filled in as:
1s<2s< 2p<3s< 3p<4s < 3d
So, the highest energy level in an atom is in a 3d shell that is "(n,l, [tex]m_{l} ,\ m_s[/tex]) =(3,2,1, [tex]-\frac{1}{2}[/tex])"
That's why the final answer is "4th Option".
Find out more about the quantum numbers here:
brainly.com/question/16979660
