Tritium Is Radioactive with a Half-Life of 12

question 63

Multiple Choice

Tritium is radioactive with a half-life of 12.33 years decaying into ³He with low-energy electron emission.If we have a sample of 1.91 × 10¹⁸ tritium atoms,what is its activity in decays/second? (1 year = 3.15 × 10⁷ s)

• A)4.92E+9 decays/second
• B)3.41E+9 decays/second
• C)1.07E+17 decays/second
• D)6.69E+16 decays/second
• E)​3.41E+10 decays/second

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A therapy method for resolving mental stress which is rooted in Freudian theories of psychological processes, focusing on unconscious conflicts.

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