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Physics.endew > Major 3 P NM > Flashcards

Major 3 P NM Flashcards

1
Q

The closer an atomic shell is to an atom’s nucleus the ____ the energy of an electron need to spin in the shell

  • Lower
  • Higher
  • No answer text provided
A

Lower

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2
Q

The atomic shell which is the 3rd closest to the nucleus is the ___

  • J
  • K
  • L
  • M
A

M

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3
Q

In a nuclide, the binding energy of which shell is the highest?

  • J
  • K
  • L
  • M
A

K

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4
Q

___ is the loss or gain of an electron from an atom.

  • ionization
  • electrolysis
  • pair production
  • decay
A

ionization

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5
Q

Valence number pertains to the number of:

  • neutrons in a nucleus
  • electrons is an atom
  • protons in a nucleus
  • electrons in an atom’s outermost shell
A

electrons in an atom’s outermost shell

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6
Q

The nucleus always has a neutral charge.

  • True
  • False
A

false

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7
Q

The basic components inside the nucleus are protons and neutrons.

  • True
  • False
A

true

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8
Q

The number of electrons in an atom determine the atom’s atomic mass.

  • True
  • False
A

false

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9
Q

Protons and neutrons are collectively called nucleons.

  • True
  • False
A

true

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10
Q

Gamma rays and x rays are collectively called protons.

  • True
  • False
A

false

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11
Q

234m 23

    Pa     Pa

91 91

  • isobars
  • isotones
  • isotopes
  • isomers
  • none of the above
A

isotopes

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12
Q

58 58

 Fe       Ni

26 27

  • isobars
  • isotones
  • isotopes
  • isomers
  • none of the above
A

isobars

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13
Q

12 13 14

C      C      C

12 12 12

  • isobars
  • isotones
  • isotopes
  • isomers
  • none of the above
A

none of the above

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14
Q

229 225

Th Ra

90 88

  • isobars
  • isotones
  • isotopes
  • isomers
  • none of the above
A

none of the above

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15
Q

124 125 126

 Te            I           Xe

52 53 54

  • isobars
  • isotones
  • isotopes
  • isomers
  • none of the above
A

isotopes

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16
Q

35

 CI

17

  • A= 17, Z=35
  • A = 18, Z=35
  • A= 36, Z=17
  • A= 35, Z=17
A

A=35, Z=17

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17
Q

21

Ne

10

  • A = 10, neutron #=35
  • A = 21, neutron #= 10
  • A = 21, neutron #= 11
  • A = 11, neutron #= 21
A

A=21, neutron #=11

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18
Q

Characteristics x-rays are emitted from an atom at discrete (exact) energy levels.

  • True
  • False
A

True

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19
Q

Radionuclides are radioactive because they have either too many protons and too few protons in their respective nuclei.

  • True
  • False
A

False

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20
Q

A negratron, positron and electron are all equal in mass.

  • True
  • False
A

True

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21
Q

A 100 KeV beta particle will travel further in human tissue than a 300 keV beta particle.

  • True
  • False
22
Q

A 1 meV alpha particle will not penetrate as far a 1 meV beta minus particle.

  • True
  • False
23
Q

It would require a thicker sheet of lead to protect us from

  • True
  • False
24
Q

The specific ionization of a 1 MeV gamma rays is greater than a 1 MeV beta minus particle.

  • True
  • False
25
In the radioactive decay process, the original radionulce - Primary; secondary - Mother; child - Parent; daughter - target; product
parent; daughter
26
There will be __ Bremsstrahlung x-rays produced if a beta minus emitter is shielded by... - More - Less - The same - Not enough information to determine
more
27
The change from one radioactive element to a different radioactive element having the same chemical properties; but different amounts of energy is called: - Alpha decay - Negatron transformation - Isometric transition - Isobaric transition
isometric transition
28
If a medium energy gamma ray undergoes several Compton scattering... will finally be stopped by a __ event. - Beta minus - Gammaexo - Pair production - Photoelectric
photoelectric
29
If a radionuclide with a low ocurrence of internal conversion is injected to the patient and get to the gamma camera than a radionuclide; about the two radionuclides are similar and the energies... - True - False
True
30
The diference between a positron and negatron is their ___. - Mass - Orgin - Charge - Weight
charge
31
Characteristics x-rays are always released during - Alpha decay - Positron decay - Negatron decay - Electron Capture
electron capture
32
Which of the following has the greatest effect on the rate of radioactive decay - HIgh temperatures - HIgh acidity - High Preassure - None of the previous will effect the rate
none of the previous will affect the rate
33
If you start with radionuclide that measures 200 mCi, how much is left after - 1 mCi - 12.5 mCi - 25 mCi - 50 mCi
25 mCi
34
Mendeleev's work was the beginning of the modern periodic chart. He laid out - Chemical properties - Atomic masses - Proton numbers - Kinetic properties
chemical properties
35
Each elemental gas has its own unique collection of spectral lines. - True - False
True
36
An atom contains the following shells (orbits) with their corresponding energy levels K shell= 200 keV. If a k shell electron is ejected by a gamma ray and then an L shell electron falls to the L shell; what are the energies of the two characteristics x ray emitted... - 25;75 - 75; 150 - 50; 75 - 25; 150
25:150
37
X rays and gamma rays can be deflected by magnetic fields. - True - False
false
38
What is the main difference an x ray and gamma ray? - Their atomic numbers - Their chemical properties - Their atomic masses - Their points of orgin
Their points of orgin
39
Supply the correct A and Z numbers for the following decay equation. 234 A Th ---> Pa + Beta minus + antineutrino + gamma ray 90 Z - A = 234; Z=91 - A= 235; Z=90 - A= 233; Z=90 - A= 234; Z= 144
A=234, Z=91
40
Supply the correct A and Z numbers for the following decay equation. A 18 F --> O + beta plus + neutrino + (2) 511 keV gamma rays Z 8 - A=18; Z=8 - A=17; Z=8 - A=18; Z=9 - A=14; Z=7
A= 18; Z=9
41
Supply the correct A and Z numbers for the following decay... 26 A AI + electron capture --> Mg + x rays + gamma ray 13 Z - A= 12; Z=26 - A= 13; Z=27 - A=25; Z= 14 - A=26; Z= 12
A=26; Z-12
42
The speed at which x rays and gamma rays travel at is approximately _____ meters/second - 300 000 000 - 30 000 000 000 - 3 000 000 000 000 - 300 000 000 000 000
300 000 000
43
If the wavelength of green light is 5 x 10^-5 cm, what is its frequency in cycles/second? - 2 000 000 000 000 000 - 30 000 000 000 000 000 - 600 000 000 000 000 - 12 000 000 000 000 000 000 000
600 000 000 000 000
44
What is the energy of a gamma ray that has a frequency of 5.9 x 10^19 Hz? - 152 keV - 173 keV - 199 keV - 244 keV
244 KeV
45
A 1 MeV beta minus particle will cause __ ion pairs to be created per centimeter of air. - 45 - 245 - 2 500 - 60 000
45
46
A 1 MeV beta minus particle will travel approximately __ cm in human tissue - 0.04 - .5 - 3 - 10
.004
47
If you have 100 000 atoms of ^131 I (half-life is approximately 8 days) today, how many days? - 6 250 - 12 500 - 50 000 - 75 000
6 250
48
What is it called when a primary gamma rays hits and ejects a K shell electron and the gamma rays - Triple production - Annihilation reaction - Compton scatter - Photoelectric effect
photoelectric effect
49
The identify of an element is given by its number of: - neutrons - negatrons - protons - positrons
protons
50
208 204 Po --> Pb + _X_ 84 82 - Alpha particles - Beta particles - Gamma Particles - Positron
alpha particles

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