The nuclide of lead 210 82 Pb decays in three separate stages by and emission

The nuclide of lead ²¹⁰ ₈₂ Pb decays in three separate stages by α and β− emission to another lead nuclide,  ²⁰⁶ ₈₂ Pb .

a. Describe the structure of a nucleus of  ²⁰⁶ ₈₂ Pb .

b. α- and β−-particles are known as ionising radiations. State and explain why such radiations can be described as ionising.

c. The two lead nuclides are shown in the graph, which plots nucleon number A against proton number Z.

Copy the graph and, on your copy, draw three arrows to represent one possible route for the three decays between the two isotopes of lead. Label each arrow to show whether an α-particle or a β⁻-particle is emitted.

Transcribed Image Text:

A 210 82 Pb 210 208 206 82 Pb 206- 79 80 81 82 83 84 85 Z Figure 15.18