Question

write about hunds rule ​

Answer 1

Answer:

Hund's rule states that: Every orbital in a sublevel is singly occupied before any orbital is doubly occupied. All of the electrons in singly occupied orbitals have the same spin (to maximize total spin).

Explanation:

Answer 2

• Hund's rule states that for a given subshell, all the orbitals will first be filled singly and it's only after that the electrons will be paired.

• For example, we will consider the electronic configuration of Oxygen.

        The atomic number of fluorine is 8.

         The electrons will be filled in the order 1s² 2s² 2p⁶

• The first 4 electrons will occupy 1s and 2s orbital.

      Now, while filling the p subshell, there are 3 orbitals 2px, 2py and 2pz

      Initially, we will fill 1 electron in each orbital :2px¹2py¹ 2pz¹

      Now we have one electron left that we can pair up: 2px²2py¹ 2pz¹