Chlorine has two naturally occurring isotopes, Cl-35 and Cl-37. The atomic mass of chlorine is 35.45. Which of these two isotopes of chlorine is more abundant?

Based on the** atomic mass **of chlorine and the known masses of its isotopes, we can calculate that 75.76% of chlorine is the isotope Cl-35, and 24.24% is Cl-37, making Cl-35 the more abundant chlorine isotope. ;

Answered by DonalSutherland | 2024-06-18

Cl-35, as the atomic mass of Chlorine (35.45) is closer to the number 35 than to the number 37. A higher abundance of CL-35 isotope would have caused the atomic number (which is an average of the values of all isotopes of a substances taking relative abundance into consideration) to decrease from 36, which would appear to be the average.

Answered by BeckaH | 2024-06-24

Chlorine has two isotopes: Cl-35 and Cl-37. Cl-35 is more abundant, making up about 75% of naturally occurring chlorine, while Cl-37 accounts for about 25%. The average atomic mass of chlorine is 35.45, which is closer to the mass of Cl-35, indicating its higher abundance.
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Answered by BeckaH | 2024-09-04