Atoms To Go is your go to source for chemical and nuclear data on the elements, much like a periodic table of the elements. In addition to the usual information found in such programs, it also contains a wealth of nuclear information on each isotope, including half life, decay mode, and daughter products.

Data is displayed for the following physical properties:
Density
Heat of Vaporization
Heat of Fusion
Specific Heat
Thermal Conductivity
Linear Expansion Coefficient
Melting Point
Boiling Point
Atomic Radius
Covalent Radius
Bulk, Shear, Young's Modulus
Poisson Ratio
Brinell, Mohs, and Vickers hardness data
Magnetic Susceptibility
Electrical Resistivity
Electron Affinity
Electric Dipole Polarizability
State (gas, liquid, solid)
Photoelectric Work Function
Electronegativity
Crystal Structure
Abundance in Earth's Crust
Abundance in Earth's Sea
Abundance in Earth's Atmosphere
Abundance in Solar System
Number of Isotopes
Number of Naturally Occuring Isotopes
Number of Stable Isotopes
Photon Interactions
Magnetic Dipole Moment
Electric Quadrupole Moment
Nuclear Spin

For each isotope, the following information is available:
Decay mode
Half life
Abundance
Atomic mass
Mass excess
Binding energy
Q value
Nuclear spin
Magnetic moment
Electric moment
Alpha radiation energy
Beta radiation energy
Electron capture radiation energy
Number of protons
Number of neutrons
Daughter produce
Possible parent(s)