the mass spectrum of an element displays the masses and relative abundances of its isotopes. below is a mass…

the mass spectrum of an element displays the masses and relative abundances of its isotopes. below is a mass spectrum for element z. based on this mass spectrum, what is the average atomic mass of element z?

the mass spectrum of an element displays the masses and relative abundances of its isotopes. below is a mass spectrum for element z. based on this mass spectrum, what is the average atomic mass of element z?

Answer

Explanation:

Step1: Convert percentages to decimals

$75.99% = 0.7599$, $0.01%=0.0001$, $24.0% = 0.24$

Step2: Multiply mass - number by relative - abundance for each isotope

For mass number 35: $35\times0.7599 = 26.5965$ For mass number 36: $36\times0.0001=0.0036$ For mass number 37: $37\times0.24 = 8.88$

Step3: Sum up the products

$26.5965 + 0.0036+8.88=35.4801$

Answer:

$35.4801$ amu