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Chemistry > Nuclear Chemistry > Flashcards

Nuclear Chemistry Flashcards

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0
Q

0/-1e is what?
A. Beta particle
C. Gamma particle
C. Alpha particle

A

A. Beta particle

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1
Q

What is splitting of the nucleus into smaller fragments?
A. Fusion
B. Fission
C. Half life

A

B. Fission

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2
Q

What is the process whereby a stable nucleus loses energy by emitting radiation?
A. Gamma radiation
B. Radioisotopes
C. Radioactive decay

A

C. Radioactive decay

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3
Q

What is a particle that contains 2 protons, 2 neurons, and has a 2+ charge?
A. Alpha particle
B. Beta particle
C. Gamma particle

A

A. Alpha particle

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4
Q

What is a particle with the mass of an electron, but with a positive charge?
A. Beta particle
B. Positron
C. Megatron

A

B. Positron

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5
Q

What is an isotope that emits radiation because of an unstable nuclei?
A. Positron
B. Gamma radiation
C. Radioisotopes

A

C. Radioisotopes

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6
Q

What is the most penetrating type of radiation?
A. Gamma radiation
B. Beta particle
C. Alpha particle

A

A. Gamma radiation

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7
Q

What is a gas filled metal tube that detects radiation?
A. Half life
B. Fission
C. Geiger Counter

A

C. Geiger Counter

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8
Q

What is the time required for one-half of the atoms of a radioisotope to decay to products?
A. Fusion
B. Half life
C. Beta particle

A

B. Half life

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9
Q

What is the combination of 2 nuclei to produce a nucleus of heavier mass?
A. Fission
B. Fusion
C. Positron

A

B. Fusion

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10
Q

Which if the following is ALWAYS true about radioisotopes?
A. The proton to neutron ratio is 1:1
B. Their decay products are stable isotopes
C. They have unstable nuclei

A

C. They have unstable nuclei

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11
Q

Radioactive decay is?
A. Spontaneous
B. Occurs when unstable nuclei loses energy
C. Does not require any input of energy

A

B. Occurs when unstable nuclei loses energy

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12
Q

When 238/92 U undergoes radioactive decay by losing an alpha particle it produces what?
A. 234/92 U
B. 234/94 Pu
C. 234/90 Th

A

C. 234/90 Th

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13
Q

When Rn-222 undergoes decay to become Po-218, it emits what?
A. An alpha particle
B. A beta particle
C. Gamma radiation

A

A. An alpha particle

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14
Q

Which of the following is true concerning gamma radiation?
A. The atomic number of the radioisotope increases by one
B. The atomic number of the radioisotope decreases by 2
C. Neither the mass or atomic numbers change

A

C. Neither the mass or atomic numbers change

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15
Q

Which if the following is true concerning nuclear fusion?
A. It generally involves the splitting of the nucleus
B. It generally releases more heat than nuclear fission
C. It can occur at room temperature

A

C. It can occur at room temperature

16
Q

When nuclear fission occurs?
A. It must be irritated with a bombardment of neutrons
B. It is a spontaneous reaction
C. 2 nuclei combine to produce a heavier nucleus

A

A. It must be irritated with a bombardment of neutrons

17
Q

Nuclear reactors?
A. Can NOT produce a nuclear explosion
B. Use controlled fission to produce energy
C. All of the above

A

C. All of the above

18
Q

Which if the following types of radiation has no mass and no charge?
A. Alpha
B. Gamma
C. Beta

A

B. Gamma

19
Q

What is a device used to detect for beta radiation?
A. Geiger Counter
B. Film badge
C. Scintillation counter

A

A. Geiger Counter

20
Q

Radioisotopes taken internally for medical reasons should?
A. Have fissionable isotopes
B. A short half life
C. A stable nuclei

A

B. A short half life

21
Q

Which of the following is not true concerning an alpha particle?
A. It has a mass of 4 amu
B. It has a 1+ charge
C. It contains 2 neutrons

A

B. It has a 1+ charge

22
Q

Which if the following could stop the penetration of a beta particle?
A. A piece of aluminum foil
B. Thick lead
C. A piece of paper

A

A. A piece of aluminum foil

23
Q

What is the most penetrating form of radiation?
A. Alpha radiation
B. Beta radiation
C. Gamma radiation

A

C. Gamma radiation

24
Q

What is controlled nuclear chain reactions?
A. Never produce radioactive by-products
B. Are always fusion reactions
C. Take place in a nuclear reactor (power plant)

A

C. Take place in a nuclear reactor (power plant)

25
Q

Be able to fill out the particle chart.

A

If needed see Mrs. Krumpelman

26
Q

Be able to write an equation for elements that emit alpha radiation.

A

See Mrs. Krumpelman

27
Q

Be able to calculate half life’s over a given amount of time. Also be able to calculate half life’s if given the amount of time.

A

See Mrs. Krumpelman

Chemistry (13 decks)

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