20 lines
532 B
Plaintext
20 lines
532 B
Plaintext
Z N s
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odd odd 0.015
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odd even 0.18
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even odd 0.205
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even even 0.6
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Z > 82 -> unstable
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Z <= 20 -> stable n/p is nearly 1 (0.775 - 1.29)
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Z > 20 & Z <= 82 -> stable n/p between 1:1 and 1.5:1
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Z > 92 -> spontaneous fission
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Z > 52 -> alpha rays possible
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Can induce fission by neutron bombardment.
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Too many neutrons -> beta decay, neutron emission
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Too few neutrons -> electron capture, positron emission, proton emission
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Alpha: Emits 2Z-2N
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Beta: Emits e, 1N -> 1Z
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Electron capture & Positron emission: Emits e+, 1Z -> 1N
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