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

Identify the object of the preposition in the following sentence. The preposition is in bold text. Wooden houses were built on the bridge.
Which of the following planets rotates on its side?
Kevin buys a car. His car payment is $248 per month.After 55 payments how much was Kevin paying?
During the late 1800s in Poland and Russia, anti-Semitism took the form of violent attacks called .
In 1981 the Professional Air Traffic Controllers Organization Union thought Reagan would support it in its strike because a.Reagan had been a Democrat before b.
The two holiest cities of Islam are
how do i solve P=RB for B​
The bases of the trapezoid are 6 and 10. The height is 4. Find the area. a. 30 sq. units b. 32 sq. units c. 64 sq. units
When the Hebrew nation left slavery in Egypt to go to Canaan, which of these obstacles did they have to cross? A. Sinai Peninsula B. Gulf of Aqaba C. Medit
Which of the following is not part of the Big Bang theory? A. Gravity pulled stars into galaxies. B. In the beginning the universe was too hot for atoms to ex