Química Nuclear: Una Introducción

Who was the first person to win two Nobel Prizes?

• a.Ernest Rutherford
• b.Henri Becquerel
• c.Marie Curie
• d.Rosalind Franklin

Beta radiation is the

• a.transmutation of a neutron into a proton and electron. The electron is emitted.
• b.transmutation of a neutron into a proton and electron. The proton is emitted.
• c.transmutation of a proton into a neutron and electron. The electron is emitted.
• d.transmutation of a proton into a neutron and electron. The proton is emitted.

The atomic number decreases by two during what type of radiation?

• a.alpha
• b.beta
• c.gamma
• d.none of the choices

X-rays are an example of what type of radiation?

• a.alpha 
• b.beta 
• c.gamma
• d.transmutation

The atomic number increases by one during what type of radioactive decay?

• a.alpha
• b.beta
• c.gamma
• d.none of the choices

After three half-lives, what fraction of the original radioactive isotope remains?

• a.1/16
• b.1/2
• c.1/4
• d.1/8

The source of energy produced by the sun is the

• a.burning of fossil fuel.
• b.fission of uranium.
• c.fusion of hydrogen.
• d.none of the choices

Nuclear fission is a reaction during which the

• a.nucleus of an atom is fused with another nucleus.
• b.nucleus of an atom is stimulated to split into fragments by some source.
• c.nucleus of an atom loses a proton with the release of energy.
• d.nucleus of an atom spontaneously splits into fragments.

In nuclear fusion

• a.large unstable nuclei are fused and then split.
• b.large unstable nuclei are split, releasing energy.
• c.small, relatively stable nuclei are fused together to create a larger atom.
• d.small, relatively stable nuclei are split, releasing energy.