Nuclear Physics, Flashcards

(36 cards)

1
Q

What is a Nuclide

A

Nucleus of an isotope

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2
Q

What does the top left number of an element represent

A

The Atomic mass

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3
Q

What type of particle determines the element

A

The number of protons

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4
Q

What is Coulomb Force

A

The force which push’s protons and neutrons away from each other if charges not equal

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5
Q

Define an isotope

A

An element with a different number of neutrons to the original element atom

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6
Q

How do you know if an atom is radioactive

A

If the number of proton or neutron changes overtime, or it has excess energy

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7
Q

What is the strong force

A

The force which pulls proton and neutrons together

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8
Q

What does the atomic number determine

A

The charge of the nucleus

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9
Q

What is transmutation

A

Making a new element by changing number of protons

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10
Q

T or F: the Atomic number determines the number of protons

A

False, it determines the charge of an element

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11
Q

What is emitted in Alpha Decay

A

An alpha particle

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12
Q

What is another term for an alpha particle

A

A Helium particle

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13
Q

What is emitted in Beta Decay

A

Electron or positron

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14
Q

What is emitted in Gamma decay

A

Energy

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15
Q

Which type of nuclear decay is the heavist

A

Alpha

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16
Q

What is the mass of gamma radiation

17
Q

Which type of nuclear decay has a negative charge

18
Q

Which type of nuclear decay is the slowest

19
Q

What is the speed of gamma decay

20
Q

Which type of nuclear decay has the most ionising power

21
Q

Which type of nuclear decay has medium penetration ability

22
Q

Where is the electron/positron emitted from during Beta decay

23
Q

What happens during positive beta decay

A

A proton transforms into a neutron, releasing a positron

24
Q

What happens during negative beta decay

A

A neutron transforms into a proton, releasing an electron

25
T or F: An electron is emitted from its valence shell during beta decay
False, released from the nucleus
26
Why does Alpha decay happen
Because the nucleus is too large to be stable
27
What type of nuclear decay generally happens after another nuclear decay
Gamma decay
28
What does 1 eV do
Moves 1 electron through 1 volt
29
What is artificial transmutation
Artificially adding an alpha particle into a nucleus to break it into 2 smaller nucleus and protons
30
What does this equation represent: Uranium-238 ➡ He + Thorium-234
Alpha decay
31
What does this equation represent: He + N ➡ O + H
Artificial Transmutation
32
What is another term for Artificial Transmutation
Fusion
33
What is Einstein's equation of energy-mass equivilance
E = M*C^2
34
What is the equation for mass deficiency
△m = mass nucleus - (mass protons + neutrons)
35
What is the equation for change in mass with a negative beta decay
△m = mass parent - mass daughter
36
What is the equation for change in mass with a positive beta decay
△m = mass parent - (mass daughter + 2 electrons)