ngriffit5257
ngriffit5257 ngriffit5257
  • 16-02-2022
  • Mathematics
contestada

The half-life of Radium-224 is
3.66 days. What was the original
mass of this radioactive isotope if
1.2 mg remains after 10.98 days?

Respuesta :

rodah203
rodah203 rodah203
  • 16-02-2022

Answer:

10.98 days is 10.98/3.66 = 3 half life periods and half of the mass is lost at each half life. You can do this in your head. I have!!

Step-by-step explanation:

Answer Link

Otras preguntas

Which explains how fossils for used as evidence about the theory of continental drift
What values does FCCLA emphasize? Check all that apply. family physical fitness leadership health care
make a triangle with 5 smaller shapes
It took 4.5 minutes for 1.0 l helium to effuse through a porous barrier. how long will it take for 1.0 l cl2 gas to effuse under identical conditions?
6TH GRADE MATH someone please solve this
Which class of polymers stores the most energy, gram for gram?
Jake went on a road trip with his family this summer. On Monday, they drove 629 miles. Tuesday, they drove 215 miles. On Wednesday, they only drove 111 miles. A
What is the missing number 200,188,152,80,8
Harriet bought 4 boxes that each have 30 bags of chips. She already had 80 bags of chips. If she then sells 200 bags of chips, how many bags of chips does she h
Which option offers the best explanation for the difference between the budget deficit and the national debt? A) The budget is the annual expenditures of the fe