Núcleos Estables e Inestables - Radiactividad

This video tutorial explains radioactive decay, focusing on the structure of atoms and the forces that determine their stability. It covers the three types of decay: alpha, beta minus, and beta plus, detailing how each process affects atomic mass and number. The video also introduces the NZ graph, which helps predict the stability of isotopes and the type of decay they might undergo. The tutorial concludes by summarizing how unstable nuclei attempt to achieve stability through decay.

What holds the protons and neutrons together in the nucleus of an atom?

• Gravitational force

• Strong nuclear force

• Weak nuclear force

• Electromagnetic force

Which type of decay involves the loss of an alpha particle?

• Beta minus decay

• Alpha decay

• Gamma decay

• Beta plus decay

In beta minus decay, what happens to a neutron?

• It becomes a proton and emits an electron

• It becomes a proton and emits a positron

• It becomes a neutron and emits a gamma ray

• It becomes an electron and emits a proton

What is emitted during beta plus decay?

• An electron

• A neutron

• A positron

• A proton

On an NZ graph, where would you find isotopes likely to undergo beta plus decay?

• To the left of the stability line

• To the right of the stability line

• On the stability line

• Above the stability line