How many feet 1s 144 inches?
To convert inches to feet just divide by 12 (since there are 12
inches per foot) -
The 2s orbital is the same as the 1s orbital except that it is at a higher engery level. Like the 1s orbital it is spherical in shape and can hold up to 2 electrons. Because the 2s orbital is the next highest orbital to the 1s orbital it gets 'filled' with electrons only after the 1s orbital is filled with its two.