Question

A nucleus decays to produce a nucleus with one additional proton. Which type of decay did the nucleus undergo? (1 point)
O beta-plus decay
O alpha decay
O beta-minus decay
• gamma decay

Answer 1

The nucleus that decays to produce a nucleus with one additional proton undergoes **beta-plus decay**. In beta-plus decay, a proton in the nucleus is transformed into a neutron, emitting a positron (which is the antimatter counterpart of an electron) and a neutrino. This process effectively decreases the number of protons in the original nucleus and increases the atomic number, resulting in a nucleus with one additional proton.

So, the correct answer is:

**O beta-plus decay**.