slatt29 slatt29

18-10-2020
Chemistry

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An element has three isotopes: St-284 (34.60%), St-285 (21.20%), and St-288 (44.20%). What is its average atomic mass?

Respuesta :

27-10-2020

Answer: I believe that it’ll be 284.45

Explanation:

May have to double check but I’m pretty sure that’s correct sorry if it’s not

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