magnesium is the ninth most abundant element in the universe and has three isotopes, given the...
magnesium is the ninth most abundant element in the universe and has three isotopes, given the fellowing information table and the average atomic mass of magnesium is 24.31amu, determine and write the atomic symbol of the unknown isotope of magnesium
Homework Answers
Magnesium isotopes:
24; 25; 26
MW average = x24*MW24 + x25*MW25 + x26*MW26
MW average = 24.31; then
MW24 = 24; MW = 25, MW = 26
24.31 = x24*24+ x25*25+ x26*26
then
x24 >> X25 + x26
therefore, the most abundant isotope = 24
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