Who? Niels Bohr started the concept of electrons orbiting the nucleus, but I'm not sure he called them shells, but more along the lines of energy levels.
Magnetism
Niels Bohr
They have the same number of shells (or energy levels).
Plutonium has seven electron shells.
Samarium has six electron shells.
Magnesium has 3 electron shells. The electron configuration is : 2,8,1
The correct number of electron clouds or shells sodium has is 3.
it has 6 electron shells as it is in the sixth period on the periodic table.
Phosphorus in is 3rd period. So it has 3 electron shells.
Magnesium has three electron shells. The electron configuration is 2,8,2
No, iodine has 5 electron shells. It has a total of 53 electrons and its electron configuration is [Kr] 5s2 4d10 5p5, indicating that it has 4 electron shells.
Albert Einstein albert Einstein