How does the nucleus change in beta-plus decay?(1 point)

Responses

The mass number remains the same, and the atomic number decreases by one.
The mass number remains the same, and the atomic number decreases by one.

The mass number increases by one, and the atomic number remains the same.
The mass number increases by one, and the atomic number remains the same.

The mass number remains the same, and the atomic number increases by one.
The mass number remains the same, and the atomic number increases by one.

The mass number decreases by one, and the atomic number remains the same.
The mass number decreases by one, and the atomic number remains the same.

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
2 hours ago

In beta-plus decay (also known as positron emission), a proton in the nucleus is transformed into a neutron, which results in the emission of a positron and a neutrino.

As a result:

  • The mass number remains the same (since the total number of nucleons, protons + neutrons, does not change).
  • The atomic number decreases by one (since one proton is transformed into a neutron).

Therefore, the correct response is:

The mass number remains the same, and the atomic number decreases by one.