How many neutrons in actinium?

Answer:

The number of neutrons is the difference between the atomic mass of an isotope and the atomic number.

Actinium has a great number of isotopes, each with a different mass or number of neutrons.

First answer by Desdichado. Last edit by Desdichado. Contributor trust: 441 [recommend contributor recommended]. Question popularity: 1 [recommend question].

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