Question

the average atomic mass of an element Y is 35.5u. Find the percentage of isotopes 37/7 Y and 35/17Y in the sample of this element​

Answer 1

(a) Let the percentage of 17X 37 is p Percentage of 17X 35 = (100 – p) Average atomic weight = 35.5 Therefore 35.5 = 37p + 35(100 − p) /100 3550 = 37p + 3500 − 35p 3550 – 3500 = 37p - 35p 2p = 50 ⇒ p = 25% Therefore, sample of 17X 37 is 25% and 17X 35 will be 100 – 25 = 75% (b) Cesium 137 – Used to treat cancerous tumors. Calcium 47 – It is an important aid for biomedical researchers studying the cellular functionsRead more on Sarthaks.comaverage-atomic-mass-sample-element-what-are-percentages-isotopes-17x37-and-17x35-sample

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Answer 2

Answer:

the sampe of given elements are 25% and 75% respectively...