mistteen8282 mistteen8282

12-01-2021
Physics

contestada

50 POINTS!!!!

A certain atom has 11 electrons, 8 neutrons, and a charge of -1. What is its atomic mass?
A. 19
B. 15
C. 11
D. 18

Respuesta :

kyliegeorge kyliegeorge

24-01-2021

Answer:

19

Explanation:

To find the atomic mass, you have to add together the number of neutrons and protons. It gives you the number of neutrons and the number of electrons is the same amount as the protons

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