Positron emission changes the atomic number of an element by

Question

Quizplus · Accepted Answer

Positron emission involves the emission of a particle called a positron from the nucleus of an atom. A positron is a particle with the same mass as an electron but with a positive charge. When a nucleus undergoes positron emission, one of its protons is converted into a neutron, and a positron is emitted. Since the atomic number of an atom is determined by the number of protons in its nucleus, the conversion of a proton into a neutron reduces the atomic number by 1. Therefore, the correct answer is B.

Positron Emission Changes the Atomic Number of an Element by