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21-01-2024
Chemistry

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What is the relative atomic mass of an element whose isotopic composition 90% of 20x and 10% of 22x

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ulioghogladys ulioghogladys

21-01-2024

Answer:20.2x

Explanation:

use x as a place holder for the actual mass of each isotopes

realative atomic mass =( 90/ 100)

*20x + (10/ 100)*22x

simplify the equation

relative atomic mass= (18x+ 2.2x)

relative atomic mass = 20.2x

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