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).
The element hydrogen, with one electron per neutral atom, is usually placed at the top of Group 1 of the periodic table for convenience, but hydrogen is not normally considered to be an alkali metal; when it is considered to be an alkali metal, it is because of its atomic properties and not its chemical properties.