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A half life is the time for one half of a radioactive material to decay. Different materials have half-lives of different lengths. Some last only a fraction of a second. Some have a half life of hundreds of thousands of years. Unless you tell us what the material is, we can only answer "that all depends."
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How many gallons of blood does a heart pump a year?
== == == == its 36,792,000 cuz its 100,800 in a day so u multiply it by how many days are in a year which is 365
What is the half-life of Tb?
The Terbium isotope found in nature (159Tb) is stable. Like all elements, Terbium has radioisotopes, of which 33 have been created to date. 158Tb is the most stable of these, with a half-life of 180 years, 157Tb has a 71 year half-life. 160Tb has a half-life of 72.3 days. Most of the remaining radioisotopes have half-lives that are less measured in seconds, although some have half lives that are measured in days.
What is the longest radioactive halflife?
First, it isn't very accurate to talk about a radioactive "element"; you should talk about radioactive isotopes. Different isotopes of the same element can have very different behavior in this sense. For example, hydrogen-1 and hydrogen-2 are stable, while hydrogen-3 is not (half-life about 19 years).Individual atoms, in a radioactive isotope, will decay at a random moment. The half-life refers to how long it takes for half of the atoms in a given sample to decay (and convert to some other type of isotope).
What is the simple formula in calculating the half life of protactinium-234?
The formula for calculating the half-life of a radioactive substance is t1/2 = (ln(2) / λ), where t1/2 is the half-life, ln is the natural logarithm, and λ is the decay constant. For protactinium-234, the decay constant (λ) is 2.53 x 10^-6 per year. Plug in this value into the formula to calculate the half-life of protactinium-234.
How many sec are in a yr?
In a non-leap year, there are 31536000 seconds in one year.
How Many Halflife Are These In A 100-year Span How Many Grams Of The Sample Would Remain At The End Of The 100 Years?
If the substance has a half-life of 10 years, there would be 10 half-lives in a 100-year span. Each half-life reduces the amount by half, so after 100 years, 1/2^10 = 1/1024 grams of the sample would remain.
How many lifes were lost in the construction of the Titanic?
8 lost their lives in the 2 year constiction
How many decades is in a 200 year span?
20
How many months between February and September?
6 months fall between February and September: March, April, May, June, July and August. That time span is half of a year.
How many weeks are there in half a year?
There are 26 weeks in half a year.
How many months are in half the year?
6 months = a half of a year
How many NFL games played?
64 games . . . in a 4 year span
How many months are in a half in a half year?
There are six months in one half of a year.
What was the period of roman peace that lasted 200 years called?
The 200 year span of peace was called the Pax Romana.The 200 year span of peace was called the Pax Romana.The 200 year span of peace was called the Pax Romana.The 200 year span of peace was called the Pax Romana.The 200 year span of peace was called the Pax Romana.The 200 year span of peace was called the Pax Romana.The 200 year span of peace was called the Pax Romana.The 200 year span of peace was called the Pax Romana.The 200 year span of peace was called the Pax Romana.
How many weeks in a 50 year span with 13 leap years?
2609 weeks.
What is the life span of a tick?
A average life span is about 1 year
How many months are in one half year?
In half a year there are 6 months. If you ment in one and a half years, then 18 months.
