dmwilder5343 dmwilder5343

20-09-2017
Chemistry

contestada

The sodium atom contains 11 electrons, 11 protons, and 12 neutrons. what is the atomic mass of sodium?

Respuesta :

magistercollege magistercollege

24-09-2017

Atomic mass is the number of protons + number of neutrons. 11 protons + 12 neturons = 23

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