heypeoplelol heypeoplelol
  • 04-06-2021
  • Mathematics
contestada

In two half-lives, how much of a 400-gram sample of a radioactive element will remain un-decayed?

Respuesta :

Аноним Аноним
  • 04-06-2021

Answer:

100 grams

Step-by-step explanation:

1/2 * 1/2 = (1/2)² = 1/4

1/4 * 400 = 100

Answer Link

Otras preguntas

what % of food in the grocery store contains added sugars?
Seven years ago, Grogg's dad was $9$ times as old as Grogg. Four years ago, Grogg's dad was $6$ times as old as Grogg. How old is Grogg's dad currently?
The function h is defined by h(x)=3x^(2 )+2. Find h(4x)
I am a grade 9 student currently studying biology, chemistry and more as my electives. \ desire to be a doctor and is amazed by the human body and structures of
All of the following behaviors can transmit STIs exceptA. using the same toilet seatB. kissingC. sexual intercourseD. sexual touching
22. A bag contains 20 red, 40 blue and 15 yellow balls. Find the percentage of red balls. (A) 24 2/3% (B) 26% (C 25 2/3 % (D) 26 2/3%
22. A bag contains 20 red, 40 blue and 15 yellow balls. Find the percentage of red balls. (A) 24 2/3% (B) 26% (C 25 2/3 % (D) 26 2/3%
imagine you are the school captain and the cdf committee wishes to set up a project in your school.the principal has asked you to organize with the prefects to
Color: 4. You have 4 dimes, 8 nickels, 5 pennies, and 3 quarters. You draw three coins one after the other without replacement. What is the probability you draw
how do our law enforcement personnel serve, protect, and keep our communities safe this holiday season?​