What is average atomic mass of chlorine if 35Cl and 37Cl are available with 76% and 24 respectively?

Text Solution

Solution : Method: Multiply the mass number of each isotope by its percentage abundance in decimal form and add the products to find the atomic mass. From the given data, Atomic mass of chlorine `=(35 xx 0.76 amu + 8.88amu)=35.48 amu`

Atoms consist of a nucleus containing protons and neutrons, surrounded by electrons in shells. The numbers of particles in an atom can be calculated from its atomic number and mass number.

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