Well, this guy has the first principal level. The first principal quantum number, or N equals one. And that means if N equals one, our second quantum number, our L must be zero. And if l is zero, that means our third quantum number, the orbital in which our electron is located is the s orbital. So to represent this in an electron configuration way, we simply do the following. We put a coefficient in front of our S. So the Wand represents our shell, our principal quantum number.