4. Ninety-two percent of the atoms of an element have a mass of 28 u, 5% have a mass of 29 u, and the remaining atoms have a mass of 30 u. Calculate the average atomic mass and identify
the element.​

Relax

Respuesta :

Answer:

.92(28)+0.05(29)+0.03(30)=25.76+1.45+0.9=28.11

silicon

Explanation: