The update impacts the (Read more...) The Defense Property Accountability System (DPAS) is a Department of Defense (DoD) property management system. It is the Accountable Property System of Record (APSR) for over 32 DoD Agencies and Military Services. DPAS contains three modules, Property Accountability, Maintenance & Utilization and Warehouse Management. This program is administered by the Office of the Under Secretary of Defense for Acquisition, Technology and Logistics (OUSD AT&L), a branch of the Office of the Secretary of Defense.
Seventeen elements are generally classified as nonmetals; most are gases (hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, krypton, xenon and radon); one is a liquid (bromine), and a few are solids (carbon, phosphorus, sulphur, selenium, and iodine).
Diatomic implies that the elements naturally occuring atomic form is a bonded pair of atoms. There are several diatomic elements: N, O, F, Cl, I, Br, At all exist as bonded pairs. These are the only elements that do this. A diatomic gas merely means that the diatomic element is a gas at STP. N, O, F, Cl are the diatomic gases.