Simulation · 2.2

Isotope Mixer

Choose an element. Move the sliders. Watch the average atomic mass change.

Element

Percent abundance sliders

Mass spectrum

Average atomic mass

0.00 amu

Periodic table: amu

Isotope masses and real percents: NIST. Average = (mass × decimal) + (mass × decimal) + ... The last slider fills in the percent that is left, so the total is always 100.