Question

What are the condition for the combination of atomic orbitals ?​

Answer 1

Answer❤

The combining atomic orbitals must have the same or nearly the same energy. This means in a homonuclear molecule, the 1s-atomic orbital of an atom can combine with the 1s-atomic orbital of another atom, and not with the 2s-orbital

Answer 2

$\large\underline\bold{ANSWER \red{\huge{\checkmark}}}$

The combining atomic orbitals must have the same or nearly the same energy. This means in a homonuclear molecule, the 1s-atomic orbital of an atom can combine with the 1s-atomic orbital of another atom, and not with the 2s-orbital