Technetiumball is the 43rd element in the periodic table with the symbol Tc. He is synthetic and radioactive- with a half-life of 6 hours. He is created by bombarding molybdenumball with neutrons, decaying into technetiumball. He is the first radioactive element on the periodic table (and very weirdly, since all elements around it are stable). His short-lived isotope, 99mTc, is used in x-rays in hospitals to locate cancer.
Periodic Table
e- nu n n2 n3 n4 n5 p+
H   He
Li Be   B C N O F Ne
Na Mg   Al Si P S Cl 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 In Sn Sb Te I Xe
Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
Transition Metals
Transition Metals ScandiumballTitaniumballVanadiumballChromiumballManganeseballIronballCobaltballNickelballCopperballYttriumballZirconiumballNiobiumballMolybdenumballTechnetiumballRutheniumballRhodiumballPalladiumballSilverballHafniumballTantalumballTungstenballRheniumballOsmiumballIridiumballPlatinumballGoldballRutherfordiumballDubniumballSeaborgiumballBohriumballHassiumballMeitneriumball (predicted) • Darmstadtiumball (predicted) • Roentgeniumball (predicted)