Nuclear Chemistry

Which particle has the greatest mass?

• A Beta Particle

• An electron

• An alpha particle

• A neutron

Which radioactive particle have a charge of +2?

• Alpha particles

• Beta particles

• Gramma rays

• Neutrons

According to reference Table N in the reference Tables for Physical Sitting/Chemistry a product of the radioactive decay of Phosphorus-32 is

• ⁴₂He

• ²²⁶₈₉ U

• ⁰_-1 e

• ²³⁰₉₀U

In this nuclear equation ³⁷₁₉ K --> ³⁷₂₀Ca + X ,

the letter X represents

• an alpha particle

• a gamma ray

• a positron

• a beta particle

The notation for the nuclide ²⁰⁴₈₁Ti gives information about

• mass number, only.

• atomic number, only.

• both mass number and atomic number.

• neither mass number nor atomic number.

High energy is a requirement for fusion reactions to occur because the nuclei involved

• attract each other because they have like charges

• attract each other because they have unlike charges

• repel each other because they have like charges

• repeal each other because they have unlike charges

What process is represented by the following reactions?

²₁H + ²₁ H ---> ⁴₂He = Energy

• Alpha decay

• Artificial transmutation

• Fusion

• Fission

Which process occurs in a controlled fission reaction?

• Neutron bombardment split light nuclei

• Neutron bombardment split heavy nuclei

• light nuclei collide to produce heavier nuclei

• Heavy nuclei collide to produce lighter nuclei

Consider this reaction.

²³⁵₉₂U + ¹₀n ---> ¹³⁸₅₆Ba + ⁹⁵₃₆Kr + 3¹₀n + energy

This equation can best be described as

• fission

• fusion

• natural decay

• endothermic

Which of the following nuclear reactions is classified as positron decay?

• ³⁷₁₉ K---> ³⁷₁₈Ar + ⁰₊₁e

• ²²⁶₈₈Ra ---> ²²⁶₈₈ Rn + ⁴₂He

• ⁴²₁₉K ----> ⁴²₂₀ Ca + ⁰_-1e

• ³₁H ---> ⁰ _-1e + ⁴₂ He