One evening last summer, as I strolled along the promenade in Limbe, a small, scenic port town in southwestern Cameroon, I was stopped by a well-dressed young man who greeted me warmly and took me by the hand.
Phosphorus has 3 shells. The outer shell contains 5 electrons. The electronic configuration is :- <br /> 1s2, 2s2, 2p6, 3s2, 3p3.
Best Answer: In the electron config. , show that the phosphorus has 15 electrons when it is in neutral state. The outermost shell has 5 electrons. Therefore, the inner-shell have 10 electrons. Reason: 1s2 - first orbital 2s2 2p6 - second orbital 3s2 3p3 - third orbital so, third orbital is the outermost shell and it has 2+3=5, 5 electrons in this shell. Inner-shells are the shells that contains in atom, except the outermost shell.