50 POINTS!! How many grams of aluminum will react with 18.0 dm^3 of chlorine gas?

Please help me solve this and explain how you got the answer Thank you!!​

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.