Question

What is the number of electron which have the set of quantum number 2,1,0,+1/2 ? Pls answer fast

Answer 1

Answer:

One and only one unique electron can have this set of quantum numbers

Explanation:

$\blacksquare$ Quantum numbers are numbers that can be useful in finding the electronic configuration, ionisation enthalpy, position of electron etc

$\blacksquare$ There are 4 quantum numbers namely :

1. Principal quantum number
2. Azimuthal quantum number
3. Magnetic quantum number
4. Spin quantum number

$\blacksquare$ Principal Quantum Number (n)

- It denotes the shell in which the electron is residing

- It can take values of 1, 2, 3 etc

$\blacksquare$ Azimuthal Quantum Number (l)

- It denotes the orbital angular momentum and shape of the orbital

- It can take values from 0 to (n-1) where, n is the principal quantum number

$\blacksquare$ Magnetic Quantum Number (m)

- It denotes the orbitals available in a particular subshell

- It can take values from -l to +l where l is the azimuthal quantum number

$\blacksquare$ Spin Quantum Number (s)

- It denotes the spin of the electron (clockwise or anti-clockwise)

- It can take the value of +1/2 or -1/2

$\blacksquare$ Quantum numbers can be considered as the identity card for an electron

$\blacksquare$ Each and every electron has a particular set of quantum number

$\blacksquare$ 2, 1, 0, +1/2

The given set of quantum numbers denotes electron :

1. in second shell 2
2. in p-subshell
3. in orbital of p-subshell
4. having clockwise spin $\boxed{\uparrow}$