H He Li Be B N O F Ne Na Mg AI Si S CI Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd n Sn Sb Te Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg TI Pb Bi At Rn Fr Ra Ac Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Im Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md Lr Atoms consist of: Mass (a.m.u.) Charge (eu) 6 Protons 1 +1 Neutrons 0 C Electrons 1/1836 -1 12.01 -3H Li Na K Rb Cs Fr Be Mg Ca Sr Ba Ra Sc Y La Ac Ti Zr Hf V Nb Ta Cr Mo W Mn Tc Re Fe Ru Os Co Rh Ir Ni Pd Pt Cu Ag Au Zn Cd Hg B Al Ga In Tl N P As Sb Bi O S Se Te Po F Cl Br I At He Ne Ar Kr Xe Rn Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr 6 Atoms consist of: Protons Neutrons Electrons Mass (a.m.u.) ~1 ~1 1/1836 Charge (eu) +1 0 -1 Si Ge Sn Pb C C 12.01 6 I-3