We get the word 'allegory' from the Latin word 'allegoria ,' taken from the Greek word for 'veiled language.' Think of an allegory as an umbrella term for stories with deeper meaning-stories that are more than stories. Some allegories are very heavily veiled and might require an English professor to explain them to you.
A neutral phosphorus atom has 15 electrons. Two electrons can go into the 1 s subshell, 2 can go into the 2 s subshell, and 6 can go into the 2 p subshell. That leaves 5 electrons. Of those 5 electrons, 2 can go into the 3 s subshell, and the remaining 3 electrons can go into the 3 p subshell.
In a neutral atom, the number of electrons is the same as the number of protons. The atomic number of aluminum is 13. A neutral atom of aluminum has 13 protons and 13 electrons. The ground state electron configuration for aluminum is #1s^22s^22p^63s^23p^1#. A shorthand way to write the electron configuration, called noble gas notation, is #[Ne]3^23p^1#.