Asample of a radioactive isotope of an element contains 60 million atoms and is found to have a decay rate of 8 hundred atoms per year. what is the half-life of the isotope? (give your answer correct to at least two decimal places.)

The half-life of the isotope is 3.75 × 10⁴ years.

Explanation:

Hi there!

The half-life of the radioactive isotope is the time at which half of the atoms of the sample decay.

The sample has 6.00 × 10⁷ atoms and every year 8.00 × 10² of them decay. Then, we have to find the time at which 30 million atoms decay:

If  8.00 × 10² atoms decay per year, 3.00 × 10⁷ atoms will decay in:

3.00 × 10⁷ atoms · ( 1 year / 8.00 × 10² atoms) = 3.75 × 10⁴ years

Have a nice day!

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

a skateboard rolling across the street - apex