The Allegory of the Cave. The dialogue between Socrates and Glaucon is probably fictitious and composed by Plato; whether or not the allegory originated with Socrates, or if Plato is using his mentor as a stand-in for his own idea, is unclear. In the dialogue, Socrates asks Glaucon to imagine a cave, in which prisoners are kept.
The d sublevel consists of five orbitals that can hold a maximum of  two electrons each. The total maximum number of electrons that the  d sublevel can hold is 10 electrons.
The s subshell can contain a maximum of two electrons, the p subshell can hold six electrons, the d subshell can carry 10 electrons, the f subsell can contain up to 14 electrons and the g subshell can contain a total of 18 electrons. Learn more about Atoms & Molecules