Responses
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.
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 remains the same, and the atomic number decreases by one.
1 answer
In beta-plus decay (β+ decay), a proton in the nucleus is transformed into a neutron, and a positron (the antimatter counterpart of an electron) is emitted. As a result, the atomic number decreases by one while the mass number remains the same.
Therefore, the correct response is:
The mass number remains the same, and the atomic number decreases by one.
