K shell
= K shell
{c}
{title2=$n=1$}
The innermost atomic <electron shell>, with principal quantum number $n=1$. Its $s$ orbital has nonzero nuclear overlap, making its electrons important in <electron capture>.
= K shell
{c}
{title2=$n=1$}
The innermost atomic <electron shell>, with principal quantum number $n=1$. Its $s$ orbital has nonzero nuclear overlap, making its electrons important in <electron capture>.