What is the symbol for Becquerel?
Q: What is the symbol for Becquerel?
A: The symbol for Becquerel is Bq.
Q: What is a petabecquerel?
A: A petabecquerel is 1015 times a becquerel.
Q: How does the expression -dN/dt, used in the given text, relate to radioactivity?
A: The expression -dN/dt relates to radioactivity because it expresses the rate of decay (decrease) of radioactive material over time.
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