The element lead (pb) consists of four naturally occurring isotopes with atomic masses 203.97302,205.97444,206.97587, n 207.97663 amu. the relative abundances of these four isotopes are 1.4,24.1,22.1, and 52.4 %, respectively. write the most common isotope of lead in two ways

The method of determining the most common isotope of lead is by determining the average atomic mass. The formula for determining the average atomic mass is:

Substituting the values in the formula:

The most common isotope of lead is:

Lead - 207.22 amu

The atomic symbol of lead is . The atomic number of is 82.

So, the the most common isotope of lead can be written as:

and Lead - 207.22 amu.

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