Author Archives: tranvandung2851998


calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. It is the fifth most abundant […]


quantico may refer to: Virginia institutions: Quantico, FBI Academy of U.S. national law-enforcement agency Marine Corps Base Quantico, U.S. training base Metropolitan-Washington geography: Quantico, Maryland, unincorporated community In Virginia: Quantico Creek, a tributary of Potomac River Quantico, Virginia, town Titled works: Quantico (novel) (2005) Quantico (TV series), a 2015 TV series Quantico, cultivar of […]