Acertain element x has four isotopes. 4.350% of x has a mass of 49.94605 amu. 83.79% of x has a mass of 51.94051 amu. 9.500% of x has a mass of 52.94065 amu. 2.360% of x has a mass of 53.93888 amu. what is the average atomic mass of element x?

The average atomic mass of the element X is 51.99592 amu

Explanation:

Mass of isotope 1 = 49.94605 amu

% abundance of isotope 1 = 4.350% =

Mass of isotope 2 = 51.94051 amu.

% abundance of isotope 2 = 83.79% =

Mass of isotope 3 = 52.94065 amu.

% abundance of isotope 2 = 9.500% =

Mass of isotope 4 = 53.93888 amu.

% abundance of isotope 2 = 2.360% =

Formula used for average atomic mass of an element :

Therefore, the average atomic mass of the element X is 51.99592 amu

try answer.com that works for me