This particular isotope of neptunium has a weight of 235.0440633 grams/mole.

This particular isotope of neptunium has a mass of 236.04657 grams/mole.

Chemical traces produced by climatic changes, such as quantities of particular isotopes, can be recovered from proxies.

A particular isotope of a particular element is called a nuclide.

The amount of radiation delivered depends on the particular radioactive isotope.

The production rate of a particular isotope depends on the energy of the oxygen beam.

One at a time, they move down inside a shielded detector, set to measure specific energy windows characteristic of the particular isotope.

A superscripted m (or m2, etc.) refers to an isomer of that particular isotope.

Replies: Predicting the stability of a particular isotope of an element is a "tricky" business.

Several more steps ensure that the beam, now whittled down to contain just one particular isotope, is in the correct charge state to be accelerated.