Answer: The atomic weight of silver is 107.87 amu
Explanation:
Mass of isotope silver-107 = 106.91 amu
% abundance of isotope silver -107 = 51.84% = [tex]\frac{51.84}{100}=0.5184[/tex]
Mass of isotope silver-109 = 108.90 amu
% abundance of isotope silver-109 = 48.16% = [tex]\frac{48.16}{100}=0.4816[/tex]
Formula used for average atomic mass of an element :
[tex]\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})[/tex]
[tex]A=\sum[(106.91\times 0.5184)+(108.90\times 0.4816)][/tex]
[tex]A=107.87amu[/tex]
Thus atomic weight of silver is 107.87 amu
