sydneiralston67 sydneiralston67

04-03-2016
Physics

contestada

Atoms of element A decay to atoms of element B with a half-life of 20,000 years. If there are 10,000 atoms of A to begin with (and 0 atoms of B), how long will it take for there to be 2,500 atoms of A?

Respuesta :

olemakpadu olemakpadu

05-03-2016

atoms 10000 5000 2500

Half life 0 1 2

From the above description, we have 2500 atoms left after 2 half lives.

= 2 * 20000 = 40000

That is after 40000 years.

Answer Link

dvicks21 dvicks21

23-03-2020

Answer: the answer is B

Explanation:

Answer Link

Otras preguntas

The story about Olivia twist

2.6 Write down the meaning of the symbol {R}

What is the following quotient?6-3(^3√6)/3/9 O 2(3√3)-3√/18 O 2(³√/3)-3(³/2) O 3(3/3)-3√/18 O 3(³√/3)-3(3√/2)

during one semester, the time elaine spent doing homework or participating in extracurricular activities was 20 percent less than the time she spent attending c

find the coefficient of x^5 in the expression ( 1 - 2x) ^6

Because of stormy weather a pilot flying at 35,000 ft descends 8,000 ft. What is his new altitude

look at the picture in enrique's classroom on page 100. listen to the descriptions. if the description is true write, cierta. if it is false write, flasa.

Amines are ________. brønsted-lowry bases brønsted-lowry acids neutral in water solution unreactive

4. Emily’s house has a chimney. What is the volume of her chimney? 4 in 12 in 9 in 3 in 4 in 6 in. please hurry ill give brainliest quickly

Which option is an example of deductive reasoning? Spiders are scary