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The technetium-99 isotope has a half-life of 6.0 hours If a 100mg sample of technetium-99 were injected into a patient how many milligrams would still be present after one day?
Wiki User
∙ 15y ago
I'll take a wild guess and say 6.25mg. if that's not right I too would like to know how to compute. I had a dose today but don't know the amount they infused.
Wiki User
∙ 15y ago
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What is the stable isotope that is formed by the breakdown of a radioactive isotope?
That's called a daughter isotope, or a daughter product. (The original isotope that decayed is the parent isotope.)
Mass number of actinium?
Unable to answer without knowing the specific isotope. However I will assume you mean actinium-227 as it is the only isotope with a halflife longer than a few days.227 protons and neutrons each composed of 3 quarks, total 681 quarks89 electronsThis gives a total of either 316 electrons, protons, and neutrons or 770 electrons and quarks. However this does not count the undeterminable number of virtual photons, muons, and gluons being exchanged by those electrons, protons, neutrons, and quarks to couple the electromagnetic, weak, and strong forces between them.
What plutonium isotope has 144 neutrons?
This is the isotope plutonium-238: 23894Pu.
Is xenon an isotope ion or neutral atom?
It is an isotope of a neutral atom.
What is the isotope for mass number 54 and contains 24 protons?
Any isotope with 24 protons is chromium; therefore, the requested isotope is 54Cr.
Is lithium 8 an isotope why?
Yes, but it has a halflife of only 0.86 seconds.
Is it true that the half-life of a radioactive isotope decreases as the isotopes decay?
no, halflife is a constant for each isotope's decay process.
Is any isotope of lead is radioactive?
many. one example is lead-214 with a halflife of 26.8 minutes.
What is the time needed for half of a sample of a radioactive isotope to break down to form daughter isotopes called?
halflife
What isotope is injected into bloodstream to prevent or detect a heart attack?
forkenium 87
How do scientists use the halflife of radioactive isotopes to date rocks and fossils?
The basic idea is to compare the abundance of a naturally occurring radioactive isotope within a material to the abundance of its decay products; it is known how fast the radioactive isotope decays.
How does uranium 234 behave?
Uranim-234 is a rare natural isotope of uranium - the abundance is 0,0054 %.This isotope ha 92 protons, 142 neutrons and an atomic mass of 234,040 952 1(20).His halflife is 245 500 years.
How isotopes can be used to study biological processes?
Isotopes can be injected into a person in order to make MRI / x-ray scans more accurate. When they inject an isotope into you (like say an iodine isotope) they can see exactly where that isotope goes throughout your body (through the blood vessels if injected or through your gastrointestinal tract if swallowed).
What man made element is now injected to detect parathyroid dysfunction?
The isotope iodine-131.
All radioactive nuclides of an element have the same half life?
No, halflife is a bulk statistical property of a quantity of an isotope of an element.Individual nuclei do not have halflives, instead they have a probability of decaying at the current moment of time.
What element has 2 protons 8 neutrons and 2 electrons?
You think probably at 8 neutrons; in this case the extremely unstable isotope is 10He. Atomic mass: 10,0524; Halflife: 2,7.10-21 seconds
If Uranium has a halflife of 1 day how much is left at the end of the third day?
The half life of uranium is not one day. For an isotope with the half life or one day, after 3 days: the quantity remained is 12,5 %.
