Question

An isotope of the element fluorine has 9 protons and 10 neutrons. What is the name of this isotope?

fluorine-

Answer 1

The isotope of fluorine with 9 protons and 10 neutrons is known as fluorine-19. The number 19 represents the total number of nucleons (protons + neutrons) in the nucleus. Therefore, you can write it as fluorine-19 or \(^{19}\text{F}\).