dylanentwistle2354 dylanentwistle2354
  • 09-11-2017
  • Chemistry
contestada

Radium-221 has a half-life of 30 s. how long will it take for 95% of a sample to decay

Respuesta :

EmiLy4444
EmiLy4444 EmiLy4444
  • 15-11-2017
Radium-221 has a half-life of 30 s. how long will it take for 95% of a sample to decay

this would be 2.22 seconds
Answer Link

Otras preguntas

what percent of 64 million is 25 million
the number sentence 4x7=(4x3)+(4x4) is an example of what property
A strip of wood 78 inches long is to be cut into pieces 3 3/4 inches long. How many pieces can be cut? a. 20 b. 26 c. 12 d. 21
3c =______________fl oz
there are 25 servings in a 12.5 ounce bottle of olive oil how many ounces are there in a serving
What is 30.5% as a fraction in simplest form
What element is an important component in all major nutrients, such as carbohydrates and fats? A. Nitrogen B. Oxygen C. Sulfur D. Carbon
Mr brown shares with the class that 70%of the students got a A on the English vocabulary quiz if mr brown has 100 students create a model
Why did hunter-gathers move to the Nile valley
d plus 3 < 12 A) d < -9 B) d < -15 C) d < 15 D) d < 9