Respuesta :

grayfeatherlove

Answer:

23

This particular isotope of potassium-42 contains 42 nucleons (i.e., protons and neutrons, combined;) Like other isotopes of potassium 19 out of these nucleons are protons; the rest 42−19=23 are therefore neutrons.

sophiagab2023

Answer:

23 neutrons

Explanation:

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