SCI 530 Final Core Assessment Review

Choose the correct answer for the ALPHA DECAY....

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There is evidence from the scientific community that suggests the heat from the Earth's core comes from radioactive isotopes. Why do you think this is true?

• As they break down into other elements and atoms, they give off energy and particles.
• They have an electric charge and will produce energy as they interact with the magnetism of Earth.
• They release energy when reacting with non-radioactive material
• They absorb the sunlight from the surface and radiate that energy downward into the ground beneath them.

When lead-206 undergoes an alpha decay what is produces?

• Mercury-202
• Platinum-204
• Polonium-210
• Radium-208

What causes a radioactive particle to stop going through nuclear decay?

• It has become stable
• Half of the original mass has changed
• The element gets a negative charge
• It becomes happy

Which of these are an example of nuclear fission?

• Polonium-213 and a neutron produces Tin-115, Niobium-94, and four neutrons
• Hydrogen-2 and Helium-4 produce Lithium-6
• Titanium-48 and an Alpha particle produce Chromium-52
• All are Fusion

Which particle will complete the following reaction?

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In a nuclear reaction, what happens to the mass and why?

• It stays the same due to the law of conservation of mass
• It becomes more due to the law of conservation of mass
• It becomes less due to the law of conservation of mass
• It stays the same due to the law of conservation of energy

Which of these statements apply to a fusion reaction?

• The combining of atoms
• High temperature
• The splitting of atoms
• Multiple atoms produced

In the below image, an atom of carbon-14 undergoes a beta decay, resulting in the products shown. Which isotope is represented by X in the diagram?

• Nitrogen-14
• Carbon-15
• Boron-14
• Beryllium-10

Which type of nuclear reaction gives off the least amount of energy?

• Fission
• Fusion
• Their energy is the same