baby6girgreea baby6girgreea

22-01-2016
Mathematics

contestada

Some radioisotopes with the longest half-lives can remain radioactive for ________ of years.
A. billons
B. millions
C. thousands
D. tens of thousands

Respuesta :

PhineasJack PhineasJack

22-01-2016

A: billions of years :)
Tellerium -128's half life is longer than she existence of the universe!
xenon- 136 has a half life of 10^21 years.

Answer Link

Otras preguntas

Is zero included within the range of uncertainty for your y-intercept? Consider the significance of your answer. Should it be zero and how does your answer pred

What part of the brain is the arrow pointing to in the diagram below? Occipital lobe Temporal lobe Frontal lobe Parietal lobe

URGENT!! ILL GIVE BRAINLIEST!!!!! AND 100 POINTS!!!!! Two lines in a plane are cut by a transversal. Which condition does NOT imply that the two lines are paral

how did democritus model change throughout history write a paragraph using other theories about atoms.

bob was with his friends and has been using drugs. he wants to drive home despite being uncoordinated and under the influence. what is his condition an example

(8.59×10 4 )−(3.2×10 3 )

explain your reason for liking/disliking the outsiders ending. MUST include PIE

what is the velocity (in m/s) of a 925 kg car initially moving at 29.5 m/s, just after it hits a 145 kg deer initially running at 12.5 m/s in the same direction

when a plumber is called the cost of the service call is $65 for them to show up at your house plus an additional $30 per hour write the equation that represen

Find the opposite of –15.