Question

an element has two isotopes A and B with mass number 80 and 84.If atomic weight of an element is 81•5. Find the isotopic abundance of A and B.​

Answer 1

Explanation:

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Answer 2

Answer:

Explanation:

Answer: Atomic no. Is 35

Explanation: let no. of portions be x.

No. of neutrons = x + 31.7%. Of x = 1.317x

=> 81 = x + 1.317x

=> 81 = 2.317x

=> x = 34.9 or 35

So, Atomic no. = 35