Type the correct answer in each box. Use numerals instead of words. The isotope titanium-44 decays into scandium-44, with a half-life of 60 years. In a sample of titanium-44 containing 2 × 1010 atoms, how many titanium-44 and scandium-44 atoms would there be in the sample after 240 years? Express your answer in scientific notation. Consult the math review, if needed.
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