aflores0797 aflores0797

26-09-2020
Chemistry

contestada

A certain atom contains 53 protons, 66 neutrons, and 51 electrons. What is the mass number of this atom?

Respuesta :

aylin03 aylin03

26-09-2020

Answer:

The mass number of an element is the sum of protons and neutrons.

Hence, 53+66 =119

The mass number of the atom is 119.

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