Question

16. I mole of an element emitting a particles i placed in a vessel which stores them
Halflife of that element is 5 hr. How long would it take for 4S15 x 10^23 alpha
particles to be stored in the vessel ?​

Answer 1

Answer:

$45 + 6 \times 8 \div 3 \sqrt[ = ]{?}$

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