Question

Write the nuclear symbols of the isotopes. Determine the number of protons, electrons, and neutrons of each of the Lead isotopes.

Answer 1

The nuclear symbols for the isotopes of Lead (Pb) are 206Pb, 207Pb, and 208Pb with different numbers of protons and neutrons.

Step-by-step explanation:

The nuclear symbols for the neutral isotopes of Lead (Pb) are as follows:

• 206Pb (82 protons, 124 neutrons)
• 207Pb (82 protons, 125 neutrons)
• 208Pb (82 protons, 126 neutrons)

Isotopes are atoms of the same element with different numbers of neutrons. In heavy nuclei, the number of neutrons is greater than protons to maintain stability. The atomic mass of an element is determined by the weighted average of its isotopes, where the weight is determined by the abundance of each isotope.