An important geochronometer is the decay of 147Sm to 143Nd.What type of radioactive decay is involved in this parent-daughter pair?
A)beta decay
B)electron capture
C)alpha decay
D)a positron capture

Question

Quizplus · Accepted Answer

The decay of 147Sm to 143Nd involves alpha decay, in which an alpha particle (two protons and two neutrons) is emitted from the parent nucleus (147Sm) to form the daughter nucleus (143Nd).

An Important Geochronometer Is the Decay of 147Sm to 143Nd