Question

the element x had 3 isotopes x40,x42,x44 find the average atomic mass of x if the percentage of 3 isotopes 45%,25%,30% respectively​

Answer 1

Explanation:

Avarage atomic mass = 40×45+42×25+44×30/100

=41.70

Answer 2

Answer:

$\frac{(40 \times 45) + (42 \times 25) + (44 \times 30)}{30 + 25 + 45} = \frac{4170}{100} = 41.7$

Explanation:

ans is 41.7

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