EMI&. BH« SH' SH' RH S'O SO R'O' SO1 S'O' SO' R'O' SO' 1 H-l X Li - 7 Be -9'4 B - ll C - 12 N-14 0-16 F - 19 3 Na - 23 Mg - 24 AI -:/7'3 Si = P - 31 S - 32 CI - 3S'S 4 K - 39 Ca - 40 — - 44 Ti ...

U.S. Navy, Naval Air Warfare Center, Weapons Division, Research Department, Chemistry Division, China Lake, California 93555, United States ...

Building materials cause direct radiation exposure because of their radium, thorium and potassium content [5]. The study area locations are markets in the Rabigh area city, Saudi Arabia. In Rabigh ...