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Macademic for Students & Teachers
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Macademic for Students and Teachers (Quantum Leap)(1992).iso
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card_24550.txt
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1988-07-08
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1KB
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58 lines
-- card: 24550 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 2680
-- name:
-- part contents for background part 8
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ACTINIUM
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89
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Ac
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(227)
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2-8-18-32-18-9-2
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---
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1050° C
-- part contents for background part 26
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3200° C (estimated)
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+3
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FCC
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radioactive
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source of alpha rays
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It is found in radioactive ores, used in equilibrium with its decay products as a source of alpha rays. Discovered in 1899 by Debierne.