Periodic Data, Molecular Formula, Isotope Dating

An elemental data search, together with molecular and radioactive isotope dating calculator

Select what you want to calculate.

Element symbol or atomic number (Z)

Result

Enter element symbols and mass percentages. Add rows as needed. Molecular weight is optional.

Molecular weight (g·mol⁻¹) (optional)

Result

Fill in at least two elements and their percentages.

Determine the age of a sample from radioactive decay using half-life.

Parent isotope Half-life (years) Fraction of parent remaining (%)

Result