To show the electron configuration for an atom, what is the advantage of using an orbital notation compared to a dot structure?
orbital notation takes up less space.
orbital notation shows the spin of the electrons.
orbital notation makes it easier to count the electrons.
orbital notation shows the electron distribution in shells.

Explanation:

The dot structure only shows the valence electrons as dots around the chemical symbol of the element. For instance, the carbon atom has atomic number 6, which means that it has 6 protons and 6 electrons. Four of the 6 electrons are the valence electrons, so the dot structure shows the symbol C with for dots around: each dot is one valence electron.

The orbital notation is a representation of the electron configuration that uses arrows over blanks to represent the electrons. The arrows pointing upward indicate one spin and the arrows pointing downward indicate the other spin (remember that there are only two possible values for the spin quantum number, +1/2 and - 1/2).

Following the example of carbon, you have the following orbital notation:

⇅   ⇅      ↑     ↑      

1s     2s             2p  

That representation shows:

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.

0.88m hope i am correct : )