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Science > Nuclear Chemistry Review > Flashcards

Nuclear Chemistry Review Flashcards

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0
Q

Neutron controls

A

Reactivity

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1
Q

Protons controll…

A

Identity

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2
Q

Electrons control…

A

Stability

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3
Q

Radioactive materials have unstable _____.

A

Nuclei

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4
Q

Alpha particles ____.

A

Are positively charged.

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5
Q

What is not a type of nuclear radiation?

A

X rays

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6
Q

Nuclear radiation refers to charged particles or energy emitted by an unstable ___.

A

Nucleus

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7
Q

Alpha particles are nuclei of

A

Helium

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8
Q

During beta decay, a nucleus

A

Gains a proton and loses a neutron

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9
Q

In radioactive decay, with each successive half-life, half the remaining sample decays to form another

A

Element

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10
Q

Nuclei with too many or too few neutrons are

A

Unstable

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11
Q

Fusion occurs when nuclei

A

Combine

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12
Q

The opposite reaction to fusion is called

A

Fission

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13
Q

In the equation E = mc^2, “c” stands for

A

The speed of light

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14
Q

You prepare a large screened-in box, inside which you place several dozen mouse traps. You set each trap and on each mouse trap you place a ping pong ball. You then drop another ping pong ball into the box, which sets off one of the mouse traps, which sets off other mouse traps, and so on. You have just demonstrated.

A

A chain reaction

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15
Q

Radon gas is produced

A

Through radioactive decay of uranium-238 in Earth’s crust

16
Q

Small radioactive sources that are present in smoke detectors release

A

Alpha particles

17
Q

Short-lived isotopes used in agriculture to monitor water flow through crops are called

A

Radioactive tracers

18
Q

To treat certain brain tumors, doctors can use small beams of ____ that are focused to kill only the tumor cells

A

Gamma rays

19
Q

The use of nuclear reactors to generate electricity is

A

Found in dozens of countries

Science (6 decks)

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