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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
Q

In the radioactive decay process, the original radionulce

  • Primary; secondary
  • Mother; child
  • Parent; daughter
  • target; product
A

parent; daughter

26
Q

There will be __ Bremsstrahlung x-rays produced if a beta minus emitter is shielded by…

  • More
  • Less
  • The same
  • Not enough information to determine
27
Q

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
A

isometric transition

28
Q

If a medium energy gamma ray undergoes several Compton scattering… will finally be stopped by a __ event.

  • Beta minus
  • Gammaexo
  • Pair production
  • Photoelectric
A

photoelectric

29
Q

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
30
Q

The diference between a positron and negatron is their
___.

  • Mass
  • Orgin
  • Charge
  • Weight
31
Q

Characteristics x-rays are always released during

  • Alpha decay
  • Positron decay
  • Negatron decay
  • Electron Capture
A

electron capture

32
Q

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
A

none of the previous will affect the rate

33
Q

If you start with radionuclide that measures 200 mCi, how much is left after

  • 1 mCi
  • 12.5 mCi
  • 25 mCi
  • 50 mCi
34
Q

Mendeleev’s work was the beginning of the modern periodic chart. He laid out

  • Chemical properties
  • Atomic masses
  • Proton numbers
  • Kinetic properties
A

chemical properties

35
Q

Each elemental gas has its own unique collection of spectral lines.

  • True
  • False
36
Q

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
37
Q

X rays and gamma rays can be deflected by magnetic
fields.

  • True
  • False
38
Q

What is the main difference an x ray and gamma ray?

  • Their atomic numbers
  • Their chemical properties
  • Their atomic masses
  • Their points of orgin
A

Their points of orgin

39
Q

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

A=234, Z=91

40
Q

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

A= 18; Z=9

41
Q

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

A=26; Z-12

42
Q

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
A

300 000 000

43
Q

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
A

600 000 000 000 000

44
Q

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
45
Q

A 1 MeV beta minus particle will cause __ ion pairs to be created per centimeter of air.

  • 45
  • 245
  • 2 500
  • 60 000
46
Q

A 1 MeV beta minus particle will travel approximately __ cm in human tissue

  • 0.04
  • .5
  • 3
  • 10
47
Q

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
48
Q

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
A

photoelectric effect

49
Q

The identify of an element is given by its number of:

  • neutrons
  • negatrons
  • protons
  • positrons
50
Q

208 204

Po --> Pb + _X_

84 82

  • Alpha particles
  • Beta particles
  • Gamma Particles
  • Positron
A

alpha particles

Physics.endew (2 decks)

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