A40.0 milligram sample of 33p decays to 10.0 milligrams in 50.0 days. what is the half life of 33p?

half life = 25 days

Explanation:

Given data:

Total amount of sample = 40 mg

Sample left after 50 days = 10 mg

Half life of P³³ = ?

Solution:

1st step:

when time is zero = 40 mg

1 half life = 40/2 = 20 mg

2 half life = 20/ 2= 10 mg

2nd step:

Elapsed time/ half life = HL

half life = 50 days/ 2

half life = 25 days

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."