Respuesta :

flin2408

Answer: 28.11g Si

Explanation:

There is a whole formula for this.

Atomic mass= (Percent Abundance* relative isotope mass) + (percent abudance*relative isotope mass) + (Percent Abundance*relative isotope mass)

(0.92*28)+(0.05*29)+(0.03*30)= 28.11g

The answer I got is 28.11 plz give me brainliest