Question

a certain element x has four isotopes.

• 94.93% of x has a mass of 31.97207 amu.
• 0.7640% of x has a mass of 32.97146 amu.
• 4.290% of x has a mass of 33.96786 amu.
• 1.600×10⁻²% of x has a mass of 35.96709 amu.

what is the average atomic mass of element x?
express your answer numerically to four significant figures.
view available hint(s)
32.07 amu
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correct
part c
what is the identity of element x from part b?
express your answer as a chemical symbol.

Explanation:

To determine the identity of element X, we use its average atomic mass (32.07 amu from Part B). By referring to the periodic table, we find that the element with an atomic mass close to 32.07 amu is sulfur? No, wait, sulfur has an atomic mass around 32.07? Wait, no, let's check again. Wait, the average atomic mass calculated was 32.07 amu. Looking at the periodic table, the element with atomic mass approximately 32.07 is sulfur? Wait, no, phosphorus is around 31, sulfur is around 32.07. Wait, let's confirm. The average atomic mass of sulfur (S) is approximately 32.07 amu. So the chemical symbol for the element with average atomic mass 32.07 amu is S (sulfur).

Answer:

S