answersLogoWhite

0


Best Answer

56

User Avatar

Laverna Schroeder

Lvl 9
2y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How long will it take until only 25 percent of the strontium-90 remains?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How long is a will legal?

It remains valid until it is executed or until it is replaced by another will.


For how long does a pope hold office?

The pope remains in office until death unless he resigns.


How long does the tail of sperm remain attached to the head?

The tail of a sperm remains with the head until the sperm goes into the egg to fertilise it.


An area is contaminated with an element which has a half-life of 50 years How long does it take until only 1 percent of the element remains?

It would take about 345 years for only 1 percent of the element to remain. This can be calculated by using the formula: t = (ln(1/0.01) * half-life), where ln is the natural logarithm.


What are remains of organisms from long ago?

Fossils


What are the fosslis?

The remains of an animal. -------------------------- Fossils are the remains of a dead plant or animal that have been preserved for a long time.


How long can a Supervisor on WikiAnswers stay a Supervisor?

A Supervisor can be a Supervisor for however long he or she wants until the Supervisor deletes his/her account, is blocked or demoted for violating rules, or wants to quit being a Supervisor. If a supervisor remains inactive for a certain amount of time, he/she may have their supervisor powers taken away until he/she contributes again.


How long do psychedelic drugs stay in your system?

Usually a week or two, but the dosage may affect the length of persistence. For bufotenic individuals (autism, schizophrenia, etc), the specified drug remains in their system until they die.


Does the amount of time using a steroid affect how long it remains i your system?

yes it depends on the time that remains or under use in the system


What is a virus called which enters a cell and remains inactive for long periods of time?

A virus that remains inactive for a time is said to be lysogenic.


How long until a will is presented?

Until it is paid or until it expires


When were Queen Hatshepsut's remains identifed?

The mummy was found long ago but it was unidentified until 2014. They found a tooth in the organ jars and it was a match. Her mummy was found at last. Her mummy was found under the instruction of Dr. Hawass.