An element has two isotopes with atomic masses 17 and 18, occurring in the nature in ratio 1:1. What is the atomic weight of the element?

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17.5

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Solution

The correct option is D
17.5

Since the ratio of occurrence of the element is 1:1.

The average atomic weight of the element is $\frac{17 + 18}{2} = 17.5$

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An element has two isotopes with atomic masses 17 and 18, occurring in the nature in ratio 1:1. What is the atomic weight of the element?

The correct option is D 17.5 Since the ratio of occurrence of the element is 1:1. The average atomic weight of the element is 17+182=17.5

The correct option is D
17.5

Since the ratio of occurrence of the element is 1:1.

The average atomic weight of the element is $\frac{17 + 18}{2} = 17.5$