{{Infobox isotope
| image = ''image name, without leading File: - see [[Tritium]] for example''
| image_caption = image caption
| alternate_names = Alternate names
| mass_number = atomic mass
| symbol = chemical symbol (e.g. C)
| num_neutrons = number of neutrons
| num_protons = number of protons
| abundance = Natural abundance, with units (e.g. 98.5%, 1 part per million)
| halflife = t<sub>1/2</sub>
| error_halflife = error
| decay_product = decay product
| decay_mass = mass number of decay product
| decay_symbol = chemical symbol
| decay_product2 = decay product
| decay_mass2 = mass number of decay product
| decay_symbol2 = chemical symbol
| parent = parent element
| parent_symbol = chemical symbol
| parent_mass = mass number of parent isotope
| parent_decay = decay method of parent
| parent2 = parent
| mass = mass in Unified atomic mass unit
| spin = Spin
| excess_energy = excess energy in KeV
| error1 = error in keV
| error2 = error in keV
| decay_mode1 = decay mode
| decay_energy1 = energy in MeV
| decay_mode2 = decay mode
| decay_energy2 = energy in MeV
}}
Copy and paste this code to add an infobox, completing the fields as per the explanation below. You can delete those lines you do not need, or leave them in for future editors to complete.
Column counts are columns only that contain elements. "Compact cells" denote cells with element symbol only, have navbox style and the table fits basic wiki page width (1024×768). "Detailed cells" have more data, and may cause page width excess (scroll bar added). "Extended" periodic tables are about theoretical periods 8 and higher (element 119 and higher).