Chemistry, 11.02.2021 18:20 saabrrinnaaa

1. What is the relative atom mass of the element whose isotopes composition is 90% of 20, and 10% of 22, ?

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1. What is the relative atom mass of the element whose isotopes composition is 90% of 20, and 10% of 22, ?​

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1. What is the relative atom mass of the element whose isotopes composition is 90% of 20, and 10% of 22, ?