Question

Atomic mass number of chlorine is,*

1 point

A) 35

B) 35.5

C) 34

D) 36
​

Answer 1

Answer:

B) 35.5

Explanation:

• The chlorine isotope with 18 neutrons has an abundance of 0.7577 and a mass number of 35 amu. To calculate the average atomic mass, multiply the fraction by the mass number for each isotope, then add them together.

(see in the image)

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Answer 2

Answer:

35.5 is the right answer