tristin10999 tristin10999

22-10-2021
Chemistry

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How many neutrons are in an element with an atomic number of 9 and a mass number of 19?

9

10

18

19

How many neutrons are in an element with an atomic number of 9 and a mass number of 19 9 10 18 19 class=

Respuesta :

alexaaguayo101 alexaaguayo101

22-10-2021

Answer:

10 neutrons

Explanation:

This isotope of fluorine has 9 protons, 9 electrons, and 10 neutrons

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hello0012 hello0012

14-11-2021

Answer:

10 is correct answer.

good

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