An element consists of two isotopes. One isotope has an atomic mass of 105.9041 amu and has a relative abundance of 71.82%. The other isotope has an atomic mass of 107.9047 amu and has a relative abundance of 28.18%. Based on this, what is the atomic mass of the element?

the increase of protons   hope this

може ли да зареждате повече информация, моля

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally