For these 50 elements, be able to give the name if given the symbol, or be able to give the symbol if given the name. Only the 1st letter is capitalized in the symbol
H, He, Li, Be, B, C, N, O, F, Ne,
Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca,
Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Br, Rb,
Sr, Mo, Ag, Cd, Sn, I, Xe, Cs, Ba, W,
Pt, Au, Hg, Tl, Pb, Bi, Rn, Ra, U, Pu