ocr: Peslexis Resls DE ene Snemioal SEEAOS a by John G. Gramer, author of Teristor Radioactive- 2 H 848+ METALLOID (elementstoleft ofmetalloids GROUPS He 1.008 2 Po aremetals; toright, non 3 4 5 6 7 4.003 3 4 ATOMIC NO: (209) CHEMICAL metals) 5 10.82 N6 7 E016.00315331300 S 9 10 20.183 Li Be ATOMIC WEIGHT SYMBOL B C N - F Ne 6.940 9.013 Parenthesesesinaicate elementi iss artificially 11 Na 22.99124.32 12 Mg isotope. produced&-mass: TRANSITION number ELEMENTS oflongest-lived 13 Al 26.98 - - - 14 28.09 Si 15 P 30.97532.06 - 16 S 17 Cl B5.457B9.944 18 Ar 19 20 21 22 23 24 25 26 27 28 29 30 31 328 3383 ...
