Nuclear Chemistry Flashcards

1
Q

U-238 Decays via Alpha decay to Th-234. What is the Equation?

A
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2
Q

What happens in Beta Minus Decay?

A

N –> P+ Beta -

Neutron turns to a proton and a beta minus particle

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3
Q

C-14 decays via beta minus to N-14 what is the Equation?

A
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4
Q

Derive the First Order Reaction Equation that mimics decay.

A
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5
Q

Describe what the Unit Bq means

A

1 Disintegration per second

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6
Q

Describe what the unit Ci means

A

3.7X10^10 Disintegrations per second

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7
Q

Derive the Equation for calculating a half life

What is a Half Life?

A
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8
Q

What happens in Beta plus Decay?

A

p —> N + Beta+
Protons turns into a neutron and a beta plus particle aka Positron

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9
Q

If an isotope is below the stability line would it tend to undergo Beta Plus , Beta Minus or Alpha

A

Beta Minus

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10
Q

if an isotope is above the stability line would it tend to undergo Beta Plus , Beta Minus or Alpha

A

Beta Plus

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11
Q

if an isotope is above Z=82 would it tend to undergo Beta Plus , Beta Minus or Alpha

A

alpha

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12
Q

What is the Method to find binding energy

A

Find the Mass Defect in U
( Mass of Individual components - measured mass)
Convert U To energy using E=MC^2

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13
Q

Explain why Fission and fusion occur.

A

Most stable atom is Iron Fe-56

If Atomic Number is below 26- atoms will undergo fusion to try to get up to 26 protons

If Atomic Number is above 26- atoms will undergo fission to try to get down to 26 protons

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14
Q

What is Transmutation

A

Conversion of a nucleus to another via natural or externally stimulated decay

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15
Q

What is Fission

A

Heavy nuclei splits into lighter daughter nuclei

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16
Q

What is Fusion

A

Light Nucleu merge into a heavier nucleus

17
Q
A
18
Q

Which type of radiation is the most ionising?

Which type of radiation is the most Penetrating?

Which type of radiation is the least ionising?

Which type of radiation is the least Penetrating?

A

Alpha

Gamma

Gamma

Alpha