What is the half-life of the Rubidium-87 / Strontium-87 decay chain?

What is the half-life of the Rubidium-87 / Strontium-87 decay chain?
by

1 Answer

Answer :

http://answers.yahoo.com/question/index?qid=20091020104308AAsZVxB Rb 87 half life = 5*10^11 years Sr 87 half life = 2.83 hours
by

Related questions

Would life be better if we lived on Pangea?

Description : Would life be better if we lived on Pangea?

Last Answer : australia is a massive super continent so if you want to see go there

Is siderite a gemstone, mineral, meteorite, or all of the above?

Description : Is siderite a gemstone, mineral, meteorite, or all of the above?

Last Answer : I’m going to go with mineral, but minerals can look different depending on how they crystalize, so sometimes they can be shiny making them look like gems. https://en.wikipedia.org/wiki/Siderite

A sample with excess Ar40 and atmosphere Are given an apparent age that is younger or older than the real age? why?

Description : A sample with excess Ar40 and atmosphere Are given an apparent age that is younger or older than the real age? why?

Last Answer : Homework questions are not really allowed here, on this site. Maybe someone will chime in, to say how you can go about finding the answer, but that’s about it. No straight answers.

What happens to the space of the earth where oil was taken from?

Description : What happens to the space of the earth where oil was taken from?

Last Answer : answer:From here: Oil fields are not big caves in the ground despite how diagrams show them. Oil and gas are tucked into the spaces between the rock particles known as the porosity. An oil field is more like ... behind by the oil. You go from an oily block of rock (Styrofoam) to a watery one.

Could you provide me Environmental geology 8th - Edward A. Keller?

Description : Could you provide me Environmental geology 8th - Edward A. Keller?

Last Answer : answer:Here’s the study companion. Amazon.com has the 9th edition Here’s a list of sellers. Why can’t you buy online and ship? There is no ebook available, so you’re going ot have to find a way to get a physical copy.

Anyone know anything about flintknapping?

Description : Anyone know anything about flintknapping?

Last Answer : I’m not sure exactly what you are asking. Do you think this arrowhead or dart is some sort of artifact? Are you asking how to make your own dart or arrow tips and how to find the right materials on your land?

Geologically speaking, is there a risk that the Bosporus Strait and the Dardanelles Strait can close?

Description : Geologically speaking, is there a risk that the Bosporus Strait and the Dardanelles Strait can close?

Last Answer : answer:I'm talking without knowledge here, so I apologize in advance. Ideally, we have a plate tectonic expert here? We'd need to know a few things. Like you mentioned, you'd want to know if ... you'd probably want to look into would be expected sea-level projections for 50 million years from now.

Is it normal for earthquakes to be loud? Please read details.

Description : Is it normal for earthquakes to be loud? Please read details.

Last Answer : Well the very earth undderneath you is colliding and crushing itself, I imagine something might have collapsed or something though. Not sure what would make an explosion sound.

Any New Zealanders in the ask-public affected by today's quake?

Description : Any New Zealanders in the ask-public affected by today's quake?

Last Answer : I dont know but I hope Hawkeye is ok.

Why do the Snake River plain and the emperor seamounts trend in the direction that they do?

Description : Why do the Snake River plain and the emperor seamounts trend in the direction that they do?

Last Answer : Have you asked your teacher about any of these questions? A TA? Other students? I assume that this is a college course, and college professors hold office hours for a reason, go and ask him/her. If ... I'm a geographer, not a geologist, so we're often a little shady on the really technical stuff.

What is radioactive dating?

Description : What is radioactive dating?

Last Answer : I totally thought it was something that replaced speed dating.

What is a batholith?

Description : What is a batholith?

Last Answer : Both are igneous rock intrusions. What distinguishes the sill is its sheet-like form, with fairly even thickness throughout. It's formed by magma intruding between layers of sedimentary rock. The ... feature is its massive size, having an exposed surface of more than 100 square kilometers.

How did all that oil get down there?

Description : How did all that oil get down there?

Last Answer : http://news.google.com/newspapers?nid=336&dat=19630819&id=BlUOAAAAIBAJ&sjid=238DAAAAIBAJ&pg=6139,3807485

Do you think scientists will be able to predict an earthquake more precisely and give people several hours advance warning?

Description : Do you think scientists will be able to predict an earthquake more precisely and give people several hours advance warning?

Last Answer : I would hope so, but I'm not exactly counting on it. I'm no scientist so I'm not sure how close the scientific community is to a breakthrough in plate techtonics research, but I would think with ... the world, this kind of research might be cut back a little bit in favor of more pressing needs.

What can we do to prevent a landslide?

Description : What can we do to prevent a landslide?

Last Answer : Short of bringing in new soil, planting things is all you can do. I would suggest planting some very hardy plants/trees (even if they're typically unwanted breeds, like weeds) with deep growing roots, and ... so I can't give you any suggestions on specific plants, but that's really all you can do.

If a graph represents the decay of strontium 90 in an igneous rockwhat event occurred at 0 years on the horizontal axis?

Description : If a graph represents the decay of strontium 90 in an igneous rockwhat event occurred at 0 years on the horizontal axis?

Last Answer : What is the answer ?

Strontium decays by beta decay part of the nuclear equation is shown below fill in the blank with a number?

Description : Strontium decays by beta decay part of the nuclear equation is shown below fill in the blank with a number?

Last Answer : 39 APEX

What is the symbol of Rubidium ?

Description : What is the symbol of Rubidium ?

Last Answer : Symbol of Rb rubidium.

What are the chemical signals of Rubidium ?

Description : What are the chemical signals of Rubidium ?

Last Answer : Rb Rubidium tax signal

Why does rubidium have a smaller ionization energy than iodine?

Description : Why does rubidium have a smaller ionization energy than iodine?

Last Answer : Need answer

Which of the following elements is not an alkaline earth metal? w) beryllium x) barium y) calcium z) rubidium

Description : Which of the following elements is not an alkaline earth metal? w) beryllium x) barium y) calcium z) rubidium

Last Answer : ANSWER: Z -- RUBIDIUM

Which of the following alkali metals has highest specific heat? (1) Caesium (2) Rubidium (3) Potassium (4) Lithium

Description : Which of the following alkali metals has highest specific heat? (1) Caesium (2) Rubidium (3) Potassium (4) Lithium

Last Answer : Lithium

what are the additional two elements and nucleon numbers in the decay chain if there were two more alpha decay steps after lead-206.?

Description : what are the additional two elements and nucleon numbers in the decay chain if there were two more alpha decay steps after lead-206.?

Last Answer : need help asap!

Can the decay half-life of a radioactive material be changed? -Physics

Description : Can the decay half-life of a radioactive material be changed? -Physics

Last Answer : Yes, the decay half-life of a radioactive material can be changed. Radioactive decay happens when an unstable atomic nucleus spontaneously changes to a lower-energy state and spits out a bit of ... radiometric dating are so accurate because decay half-lives in nature are so close to constant.

Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1// lambda` and `t_(1//2) = 0.693//lamb

Description : Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1// lambda` and `t_(1//2) = 0.693//lamb

Last Answer : Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1// ... `tau = (t_(1//2))/(0.693)`

Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1// lambda` and `t_(1//2) = 0.693//lamb

Description : Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1// lambda` and `t_(1//2) = 0.693//lamb

Last Answer : Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process ... on the amount of element not yet decayed

Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1// lambda` and `t_(1//2) = 0.693//lamb

Description : Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1// lambda` and `t_(1//2) = 0.693//lamb

Last Answer : Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1 ... B. 53 yrs C. 530 yrs D. 5300 yrs

Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1// lambda` and `t_(1//2) = 0.693//lamb

Description : Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1// lambda` and `t_(1//2) = 0.693//lamb

Last Answer : Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay ... exponentially C. parabolically D. all of these

Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1// lambda` and `t_(1//2) = 0.693//lamb

Description : Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay process are `tau = 1// lambda` and `t_(1//2) = 0.693//lamb

Last Answer : Radioactive decay follows first-order kinetic. The mean life and half-life of nuclear decay ... lambda` depend on the nature of radioactive element

If the relation between time of decay (t) and half life period `(t_(1//2))` is `(t = 4 t_(1//2))`, the relation between r and mean life (T) is:

Description : If the relation between time of decay (t) and half life period `(t_(1//2))` is `(t = 4 t_(1//2))`, the relation between r and mean life (T) is:

Last Answer : If the relation between time of decay (t) and half life period `(t_(1//2))` is `(t = 4 t_(1//2))`, the ... `27^(4)` In 2 C. 4 T In 2 D. 2T In 2

What is the half life of 3 g sample of radioisotope that decay to 0.75 g in 30 days?

Description : What is the half life of 3 g sample of radioisotope that decay to 0.75 g in 30 days?

Last Answer : 15 days

X210 has half life of 5 day. What is the time taken for seven-eights of sample of X210 to decay?

Description : X210 has half life of 5 day. What is the time taken for seven-eights of sample of X210 to decay?

Last Answer : 15 days

The time required for half of the __________ of a radioactive isotope to decay is called its half life. (A) Nuclei (B) Electrons

Description : The time required for half of the __________ of a radioactive isotope to decay is called its half life. (A) Nuclei (B) Electrons

Last Answer : (A) Nuclei

Half life is a term used to describe a) The penetrating ability a gamma source b) Half the total time a gamma source will be useful c) The time taken for the gamma source to reduce the strength by half d) The rate of decay of an X-ray tube

Description : Half life is a term used to describe a) The penetrating ability a gamma source b) Half the total time a gamma source will be useful c) The time taken for the gamma source to reduce the strength by half d) The rate of decay of an X-ray tube

Last Answer : c) The time taken for the gamma source to reduce the strength by half

1. Who has the final power to maintain order within the House of People ? 2. X210 has half life of 5 day. What is the time taken for seven-eights of sample of X210 to decay? 3. What is Sagar Samrat’? 4. The Appalachian coal fields, one of the important coal fields in the world, are located in which country? 5. Which was the most prominent industry that f1uorished during the Mughal period?

Description : 1. Who has the final power to maintain order within the House of People ? 2. X210 has half life of 5 day. What is the time taken for seven-eights of sample of X210 to decay? 3. What is ... an important condition for growth of coral? 20. Where was the Arya Samaj setup for the first time in 1875 ?

Last Answer : Answer : 1. Speaker 2. 15 days 3. A drilling ship in Bombay High 4. U.S.A. 5. Cotton textiles 6. Bachendri Pal 7. Nodulated root 8. President 9. Chile 10. Nur Jahan 11. 5 12. ... coast 15. Dayanand Saraswati 16. Chloramphenical 17. Lord Ripon 18. Helium nuclear 19. Wave-free salt water 20. Bombay

Consider the following decay series: `A to B to C to D` Where, A,B and C are radioactive elements with half lives of 4,5 sec, 15 days and 1 sec respec

Description : Consider the following decay series: `A to B to C to D` Where, A,B and C are radioactive elements with half lives of 4,5 sec, 15 days and 1 sec respec

Last Answer : Consider the following decay series: `A to B to C to D` Where, A,B and C are radioactive elements with half ... mol of C, 1/4 mol of D and noen of A

If a sample that originally contained grams of C14 has gone through two half-lives of decay how much C14 will be left?

Description : If a sample that originally contained grams of C14 has gone through two half-lives of decay how much C14 will be left?

Last Answer : 2.5

If a sample that originally contained 10 grams of C14 has gone through two half-lives of decay, how much C14 will be left?

Description : If a sample that originally contained 10 grams of C14 has gone through two half-lives of decay, how much C14 will be left?

Last Answer : 2.5

What name is given to the time taken for half the atoms in a sample of a radioactive isotope to decay?

Description : What name is given to the time taken for half the atoms in a sample of a radioactive isotope to decay?

Last Answer : Half-life

What are the signals of strontium ?

Description : What are the signals of strontium ?

Last Answer : Signal of Sr Stronsium

What is the chemical sign of strontium?

Description : What is the chemical sign of Strontium and what are the main properties of this substance? Maybe you can write something about the use of Strontium?

Last Answer : The chemical sign of strontium Sr. Main properties of strontium: Electronic structure: [Kr] 5s2 Number: 38 Atomic mass: 87.62 u 0.01 u Number of electrons per shell: 2,8,18,8,2 Melting point: ... is also used to train lead. Used as a red dye in fireworks. It is also used in marine aquaristics. 

Strontium - 90 can enter human body parts in place of

Description : Strontium - 90 can enter human body parts in place of

Last Answer : Strontium - 90 can enter human body parts in place of A. Phosphorus B. potassium C. Calcium D. Sodium

Strontium - 90 can enter human body parts in place of

Description : Strontium - 90 can enter human body parts in place of

Last Answer : Strontium - 90 can enter human body parts in place of A. Phosphorus B. potassium C. Calcium D. Sodium

What is the ratio of strontium to sulphate in Arabian sea?

Description : What is the ratio of strontium to sulphate in Arabian sea?

Last Answer : Need answer

Is sodium more reactive than strontium?

Description : Is sodium more reactive than strontium?

Last Answer : Need answer

What is the number of valence of electrons of strontium?

Description : What is the number of valence of electrons of strontium?

Last Answer : 2

Is strontium natural or synthetic?

Description : Is strontium natural or synthetic?

Last Answer : Strontium is a natural chemical element.

Why do calcium and strontium have the same chemical properties?

Description : Why do calcium and strontium have the same chemical properties?

Last Answer : Both are situated in the group 2 of the Periodic Table.

What is Strontium Hydrogen Carbonate formula?

Description : What is Strontium Hydrogen Carbonate formula?

Last Answer : Feel Free to Answer

Is Strontium is Shiny?

Description : Is Strontium is Shiny?

Last Answer : What is the answer ?