Question

Chromium has four naturally occurring isotopes; Cr-50, Cr-52, Cr-53, and Cr-54. If the average atomic mass of chromium is 51.996 amu, which isotope of chromium is found in the greatest abundance?

A) Cr-50
B) Cr-52
C) Cr-53
D) Cr-54

Answer 1

51.996 amu

B) 52.000 amu

C) 52.191 amu

D) 52.25 amu

Step-by-step explanation:

Which one would it be on here?

Answer 2

Cr-50, Cr-52, Cr-53, and Cr-54.
The average atomic mass of chromium is = 51.996 amu.

Cr-52 is the answer.

Cr-52 because its mass number is closest to the actual atomic mass of Chromium (51.996).

Point is the more abundant an isotope is, the average will shift more towards its atomic mass.
51.996 is more close to Cr-52