elements a through b

actinium (Ac), a.n. 89aluminum (Al), a.n.13americium (Am), a.n. 95antimony (Sb), a.n. 51argon (Ar), a.n.18arsenic (As), a.n. 33astatine (At), a.n. 85barium (Ba), a.n. 56berkelium (Bk), a.n. 97beryllium (Be), a.n. 4bismuth (Bi), a.n. 83bohrium (Bh), a.n. 107boron (B), a.n. 5bromine (Br), a.n. 35