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Stability of nuclides

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Leilani Marcelo
Leilani Marcelo

1. The document discusses nuclear stability patterns based on the number of protons and neutrons in various nuclides. Even-even proton and neutron combinations are generally stable, while odd-odd combinations are very unstable. 2. Key nuclides are discussed along with their proton and neutron numbers and whether they are stable or unstable based on the patterns. Elements include tin, krypton, cadmium, promethium, technetium and plutonium. 3. Additional nuclides are listed without their stabilities identified, challenging readers to determine if they are stable or unstable based on their proton and neutron numbers and the patterns discussed.

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Stability of nuclides
Probability- the relative possibility that an event will occur.
Notation of No. of Element No. of protons Stability the Nuclide Neutrons 120 50Sn 50 70 Stable tin, Sn 121 50Sn 50 71 Unstable 84 36Kr 36 48 Stable krypton, Kr 36Kr 89 36 53 Unstable 110 48Cd 48 62 Stable cadmium, Cd 113 48Cd 48 65 Unstable promethium, 145 61Pm 61 84 Unstable Pm technetium, Tc 98 43Tc 43 55 Very Unstable plutonium, Pu 244 94Pu 94 150 Unstable
Patternfor Notation of No. of No. of p-n Element Stability the Nuclide protons Neutrons combinati on 120 Even- 50Sn 50 70 Stable tin, Sn even 50Sn 121 50 71 Unstable Even-odd 84 Even- 36Kr 36 48 Stable even krypton, Kr 36Kr 89 36 53 Unstable Even-odd 110 Even- cadmium, 48Cd 48 62 Stable even Cd 48Cd 113 48 65 Unstable Even-odd promethiu 145 Odd- 61Pm 61 84 Unstable m, Pm even technetium Very 43Tc 98 43 55 Odd-odd , Tc Unstable plutonium, Even- Pu244 94 150 Unstable Pu 94 even
Stability of nuclides
Notation No. of No. of Patternfor p-n of the protons Neutrons combination Stability Nuclide 1. 37Rb87 2. 53 I127 3. 84Po214 4. 44Ru101 5. 29Cu63 6. 38Sr88 7. 56Ba137 8. 39Y90
Even-even stable Odd-even/ even-odd unstable Odd-odd very unstable
Stability of nuclides
Pattern for proton Number of Number of neutron Stable or Nuclide protons, Z neutron, N combinati Unstable on even - 92 U (1) 143 (2) 235 odd 6O 6 (3) (4) Stable 12 even 10 N (5) (6) (7) 22 even even - 88 Ra 223 (8) 135 (9) odd 12 Mg 12 ( 10 ) ( 11 ) Stable 24 Very 53 I ( 12 ) 73 odd - odd 126 Unstable
ASSIGNMENT: Bring your periodic table and calculator.

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Stability of nuclides

  • 2. Probability- the relative possibility that an event will occur.
  • 3. Notation of No. of Element No. of protons Stability the Nuclide Neutrons 120 50Sn 50 70 Stable tin, Sn 121 50Sn 50 71 Unstable 84 36Kr 36 48 Stable krypton, Kr 36Kr 89 36 53 Unstable 110 48Cd 48 62 Stable cadmium, Cd 113 48Cd 48 65 Unstable promethium, 145 61Pm 61 84 Unstable Pm technetium, Tc 98 43Tc 43 55 Very Unstable plutonium, Pu 244 94Pu 94 150 Unstable
  • 4. Patternfor Notation of No. of No. of p-n Element Stability the Nuclide protons Neutrons combinati on 120 Even- 50Sn 50 70 Stable tin, Sn even 50Sn 121 50 71 Unstable Even-odd 84 Even- 36Kr 36 48 Stable even krypton, Kr 36Kr 89 36 53 Unstable Even-odd 110 Even- cadmium, 48Cd 48 62 Stable even Cd 48Cd 113 48 65 Unstable Even-odd promethiu 145 Odd- 61Pm 61 84 Unstable m, Pm even technetium Very 43Tc 98 43 55 Odd-odd , Tc Unstable plutonium, Even- Pu244 94 150 Unstable Pu 94 even
  • 6. Notation No. of No. of Patternfor p-n of the protons Neutrons combination Stability Nuclide 1. 37Rb87 2. 53 I127 3. 84Po214 4. 44Ru101 5. 29Cu63 6. 38Sr88 7. 56Ba137 8. 39Y90
  • 7. Even-even stable Odd-even/ even-odd unstable Odd-odd very unstable
  • 9. Pattern for proton Number of Number of neutron Stable or Nuclide protons, Z neutron, N combinati Unstable on even - 92 U (1) 143 (2) 235 odd 6O 6 (3) (4) Stable 12 even 10 N (5) (6) (7) 22 even even - 88 Ra 223 (8) 135 (9) odd 12 Mg 12 ( 10 ) ( 11 ) Stable 24 Very 53 I ( 12 ) 73 odd - odd 126 Unstable
  • 10. ASSIGNMENT: Bring your periodic table and calculator.