Question

the number of possible arrangements of two fermions in 3 cell is​

Answer 1

Answer:

Explanation:

If you had 3 unpaired electrons of the same spin occupying 3 p orbitals then each electron can exchange with 2 others. This means 3 x 2 = 6 exhanges are possible. In general the number of exchanges possible is given by n(n-1) where n is the number of electrons with parallel spins