The Aufbau principle states that, hypothetically, electrons orbiting one or more atoms fill the lowest available energy levels before filling higher levels (e.g., 1s before 2s). In this way, the electrons of an atom, molecule, or ion harmonize into the most stable electron configuration possible.
I was on the phone to see if you wanted me a couple questions and I would be able answer questions on how
Fluorine has 9 protons and 9 electrons
Iodine has 53 protons and 53 electrons
Mole=number of molecules/6.02x10²³
mole=2
number of molecules= 2x6.02x10²³
number of molecules=12.04x10²³
