Digital lab · Nuclear chemistry
Watch a nucleus
come apart.
Pick any element to see the protons, neutrons and electrons it is built from. Then slow time down and watch an alpha, beta or gamma reaction break the nucleus apart — with the real half-lives, energies and measurements behind it.
reaction ledger3 modes
- αAlphaZ − 2 · A − 4
- β⁻BetaZ + 1 · A
- γGammaZ · A
A real decay is over in about 10⁻²¹ s. Here you can stretch it across ten seconds and study every particle that leaves.
Periodic table
Hover a tile to read it, click to open the nucleus.
Alkali metalAlkaline earth metalTransition metalPost-transition metalMetalloidReactive nonmetalHalogenNoble gasLanthanideActinide
U
UraniumActinide
Z 92A 238n⁰ 146mass 238.03
1H2He3Li4Be5B6C7N8O9F10Ne11Na12Mg13Al14Si15P16S17Cl18Ar19K20Ca21Sc22Ti23V24Cr25Mn26Fe27Co28Ni29Cu30Zn31Ga32Ge33As34Se35Br36Kr37Rb38Sr39Y40Zr41Nb42Mo43Tc44Ru45Rh46Pd47Ag48Cd49In50Sn51Sb52Te53I54Xe55Cs56Ba57La58Ce59Pr60Nd61Pm62Sm63Eu64Gd65Tb66Dy67Ho68Er69Tm70Yb71Lu72Hf73Ta74W75Re76Os77Ir78Pt79Au80Hg81Tl82Pb83Bi84Po85At86Rn87Fr88Ra89Ac90Th91Pa92U93Np94Pu95Am96Cm97Bk98Cf99Es100Fm101Md102No103Lr104Rf105Db106Sg107Bh108Hs109Mt110Ds111Rg112Cn113Nh114Fl115Mc116Lv117Ts118Og
57–71
89–103
Scroll sideways for the full table →