40. Atomic weight of chlorine is 35.5.It has two isotopes of atomic weight 35 and 37.What is the percentage of the heavier isotope in the sample? (1) 5 (2) 10 (3) 25 (4) 20

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Naturally occurring chlorine consists of two isotopes whose atomic weights are 35 and 37. The atomic weight of natural chlorine is 35.5, then what is the ratio of $C l^{35} t o C l^{37}$ ?

Q. Chlorine has two naturally occuring isotopes

_{17}^{37} C l

and

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and average atomic mass of chlorine is

35.5

. The percentage of

_{17}^{37} C l

is:

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Chlorine has two isotopes having atomic masses of 35u and 37u each. They are present in the ratio 3:1 respectively. The average atomic mass of Chlorine is _______u.

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