Tritium (³H) Is Used in Glowing "EXIT" Signs Located Where

question 43

Short Answer

Tritium (³H) is used in glowing "EXIT" signs located where there is no electricity for lightbulbs. If the half-life of tritium is 12.26 years, what percentage of the original quantity of the isotope is left after 18.5 years?

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Definitions:

Par Value

The face value of a bond or stock, typically the amount paid at maturity for bonds and the nominal value for stocks.

Government Bonds

Debt securities issued by a government to support government spending and obligations.

General Level

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Convertibles

Securities, usually bonds or preferred shares, that can be converted into a specific number of shares of the issuing company's common stock.