Where Are They In The Periodic Table

Thanks to Doc Brown of ChemHelp.Net for these great chemistry revision notes. Check out his site for more! Selected Elements of The Periodic Table (name, symbol and atomic numbers 1-38 &

53-54) 1 2 G R O U P 3 4 5 6 7 8 or 0 Alkali Metals The Halogens Noble Gases Period 1 H 1 Helium 2, He 2 Lithium 3, Li Be 4 B 5 C 6 N 7 O 8 Fluorine 9, F Neon 10, Ne 3 Sodium 11, Na Mg 12 T ? R ? A M N E S T I A T L I S O ? N ? Al 13 Si 14 P 15 S 16 Chlorine 17, Cl Argon 18, Ar 4 Potassium 19, K Ca 20 Sc 21 Ti 22 V 23 Cr 24 Mn 25 Fe 26 Co 27 Ni 28 Cu 29 Zn 30 Ga 31 Ge 32 As 33 Se 34 Bromine 35, Br Krypton 36, Kr 5 Rubidium 37, Rb Sr 38 Iodine 53, I Xenon 54, Xe