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How many grams of radium-226 will remain from 5 grams after 365 years if the half life of radium 226 is 1600?
The question, as posed cannot be answered because you have not stated the units for the half-life. Some things have half lives of millions of years while others have half-lives measured in micro-seconds. Fortunately, Wikipedia came to my rescue and the half-life is 1600 years (approx).
The answer is approx 4.3 grams.
What else can I help you with?
The radioactive substance Carbon-14 has a half life of 5730 years. After 1000 years there is 2.66 grams remaining. What was the initial amount of the substance?
3.002 grams, approx.
How much rubidium-87 would remain in an object that is 147 billion years old?
Rubidium 87 has a half life of 49 billion years so it would be 3 half lives. There should, therefore be 1/8 remaining. However, it is believed that the universe is less than 15 billion years old. So finding any object that is 147 billion years old is - to put it mildly - totally impossible!
How much is 1 gram of 14K gold worth?
10k gold =.41% pure 1troy ounce/31grams = 700$ estimated Each gram = 22$ estimated 14k gold = .58% pure 1troy ounce/31 grams = 1000$ estimated Each gram = 31$ estimated 18k = 76% pure 1troy ounce/31 grams = 1200$ estimated Each gram =36$ estimated 24k = 99% pure 1troy ounce/31 grams = 1700$ estimated Each gram =55$ estimated Selling gold jewelry _____________________ Average weight for gold rings _______ 14-20 grams = 24k ring 12-16 grams= 18 k ring 7-11 Grams = 14k ring 5-10 grams = 10k ring ------------------ Gold chains ---------------- 18-22 grams 24k 12-18 grams 18k 7-12 grams 14k 6 -10 grams10k __________ Take your weight of the gold, and times it by the right karate in grams, which = the amount of estimated worth , unless you got it specifically weighed _______ Retail sales 20% above gold value, Buying stores buy below 25% value try to get 20%-30 for sales dont go under 35% This is as accurate you can get on the internet, check the value of gold daily buy using stocks only for trade. Good luck ! :) Cite: Jewelry Resale for Tiffany 10 years experience
What fraction of the original c14 would you expect to be present in a fossil that is twenty eight thousand six hundred and fifty years old?
The half-life of C14 is 5730 years so the given period is 5 half-lives. You should, therefore, expect approx 2-5 = 0.03125 of the original C14 to remain.
In which year was Smita Patil born?
Smita Patil is an Indian actress who acts in films, theatres and television programmes. She was born in the year 1995 on the 17th October. She unfortunately died in 1986 on the 13th of December. She will be missed, but her legacy will remain for many years to come.
What fraction of radium will last for 3240 years?
Radium has a half life of 1601 years. So 24.6% will remain after 3240 years.
What fraction of a radium sample will remain after 3240?
The answer depends on 3240 WHAT: seconds, days, years?
Radium-226 has a half-life of 1602 years. If you start out with 15 grams of radium-226 how much will be left after 3 half-lives?
1.875g
The half-life of radium-226 is 1620 years. How much of one gram of radium-226 will remain unchanged after four half-lives?
After 4 half-lives, the amount remaining is ( (1/2)^4 ), which equals 1/16. Therefore, 1 gram of radium-226 will have 1/16 gram unchanged after four half-lives, which is 0.0625 grams.
If a sample contains 100g of a radioactive isotope how much will be left after 3 half lives?
There will be 125 grams of radium left. Keep it simple. Ih a half-life, half the sample decays. Half of 1000 grams is 500 grams, then half of 500 grams is 250 grams. Half of that again is 125 grams. And just so you know, the half-life of radium-226, the non-synthetic isotope of radium, is 1602 years. If this was the case here, 4806 years would have to pass to get the sample to decay as far as it did.The remained quantity of radium after 3 x 1602 years is 125 grams.
How many grams of a 35 gram sample of radium will decay in 5000 years if the half-life of radium is 1602 years?
To determine the amount of radium that will decay in 5000 years, we need to find the number of half-lives that occur in that time period. Since the half-life of radium is 1602 years, approximately 3 half-lives occur in 5000 years. After 3 half-lives, the initial 35g sample will decay to approximately 4.375g.
How many milligrams of a 15.0 mg sample of radium-226 remain after 6396 years if the half-life of radium-226 is 1599?
One sixteenth of a gram. 1st halflife- 1/2 gram 2nd, 1/4 3rd 1/8th 4th halflife, 1/16th
A Radio Decay Isotopes Has A Half Life Of 100 Years . A Sample Of 40 Grams Of The Isotopes Will Have A Mass Of Grams In 200 Years?
After 100 years, half of the original sample (20 grams) will remain. After another 100 years (total 200 years), only half of that amount (10 grams) will remain.
If the initial quantity is 5 grams how much remains after 600 years?
That depends what assumptions you make about what the 5 grams of matter is made of.
If Ra-226 had a f life of 1600 years and you have 20 grams how much will be left in 3200 years?
After 1600 years, half of the 20 grams of Ra-226 will remain, so 10 grams will be left. After another 1600 years (3200 years total), half of the remaining 10 grams will remain, resulting in 5 grams of Ra-226 left.
Why is radium still on Earth?
Radium is naturally occurring and present in the Earth's crust. It is a decay product of uranium and thorium. Despite being radioactive, traces of radium remain in the environment due to its long half-life.
How much of an 800-gram sample of potassium-40 will remain after 3.9109 years of radioactive decay?
100 grams
