Radiation Safety Quiz

What is radiation?

The emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.

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Radioisotopes are stable isotopes of an element that decays or disintegrates spontaneously

True

False

What is an alpha particle

The most dominant particle in a nucleus

The opposite of a beta particle

A helium nucleus without electrons

Particle from the nucleus that will penetrate your skin

What are two types of Beta decay

Alpha and beta decay

Beta one and Beta 2

Positron and Fast Energetic Electron

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Gamma Nuclear Radiation is

occurs when a unstable nucleus changes from a higher energy state to a lower energy state through the emission of electromagnetic radiation .

Emission of photons

Requires lead shielding

Does not directly lead to a different radioisotope

All of the above

Neutron activation is

What results from gamma decay

What causes elements to initially decay

The process in which neutron radiation induces radioactivity in materials, and occurs when atomic nuclei capture free neutrons, becoming heavier and entering excited states.

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The thorium series contains Thorium and

Ra228, Ac228, Ra224 and Rn220

The remaining Actinium series

Th230, Ra226, and Rn222

Ra227,Ac227,Th227and Pu246

A Cuire(Ci) is a unit of activity of a radioactive substance equivelant to...

3.70 × 10^ 10 disintegrations per second (dps): it is approximately the amount of activity produced by 1 gram of radium-226.

6.023x10^23 molecules of radium 228

Quantity of radioactive material in which one million nuclei decay per second.

The mass of one gram of radium 226

Sun burns are caused by ionizing radiation emitted from the sun on a hot day

False

True

Depends

What would be considered radioactive decay

The spontaneous breakdown of an atomic nucleus resulting in the release of energy and matter from the nucleus.

Unstable nuclei that does not have enough strong force binding energy to hold the nucleus together.

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