radiation Flashcards

1
Q

each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.

A

isotopes

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2
Q

a full outer shell

A

stable

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3
Q

doesn’t have a full outer shell

A

unstable

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4
Q

a radioactive isotope.

A

radioisotopes

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5
Q

a method of dating geological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.

A

radiometric dating

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6
Q

another term for carbon dating. (the determination of the age or date of organic matter from the relative proportions of the carbon isotopes carbon-12 and carbon-14 that it contains. The ratio between them changes as radioactive carbon-14 decays and is not replaced by exchange with the atmosphere.)

A

radiocarbon dating

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7
Q

an apparatus or structure in which fissile material can be made to undergo a controlled, self-sustaining nuclear reaction with the consequent release of energy

A

nuclear reactor

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8
Q

a rod-shaped fuel element in a nuclear reactor.

A

fuel rod

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9
Q

division or splitting into two or more parts.

A

fission

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10
Q

External beam therapy (EBT), also called external radiation therapy, is a method for delivering a beam or several beams of high-energy x-rays to a patient’s tumor.

A

external radiotheraphy

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11
Q

a type of cancer treatment. It delivers a high dose of radiation directly to the tumor and helps spare nearby tissues. With internal radiation therapy, the oncologist implants or inserts radioactive materials at the site of your cancer.

A

internal radiotherapy

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12
Q

the treatment of cancer, especially prostate cancer, by the insertion of radioactive implants directly into the tissue.

A

brachytheraphy

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13
Q

the point on the earth’s surface directly above or below an exploding nuclear bomb.

A

ground zero

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14
Q

When nuclear weapons are detonated, enormous amounts

of heat and radiation spread out from the centre of the blast

A

thermal flash

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15
Q

An electromagnetic pulse (EMP) is an intense burst of electromagnetic (EM) energy caused by an abrupt, rapid acceleration of charged particles, usually electron s. An EMP can contain energy components over a large part of the EM spectrum , from very-low-frequency ( VLF ) radio to ultraviolet ( UV ) wavelength s.

A

electromagnetic pulse

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16
Q

Nuclear fallout, or simply fallout, is the residual radioactive material propelled into the upper atmosphere following a nuclear blast, so called because it “falls out” of the sky after the explosion and the shock wave have passed.

A

nuclear fallout