0
What else can I help you with?
How much of a 400-gram sample of K40 is left after 2 half-lives?
After the first half-life, you will have one half of the starting amount. After a second half-life period, you'll be down to one quarter. Of the part that radioactively decays, about 11% of it will decay to 40Ar, and the remainder to 40Ca. Of your total sample of ordinary potassium, only 0.012% will be 40K. The half-life of 40K is about 1.3x109 years.
What are the three naturally occurring isotopes of potassium?
99.988% of potassium found in nature is not radioactive. 0.012% of natural potassium is 40K, which is radioactive and has a half life of about 1,248,000,000 years. Like all other elements, synthetic radioactive isotopes of potassium exist.
How much does a geological engineer make?
For all engineers its pretty much the same. They come into $40K jobs after university and then, depending on career and further education choices they can get up to over $200K. Most peak out around $100K.If they become presidents of larger companies the salaries can be significantly higher.
How much money does a soil technician make?
I have a degree in geology and made $16.50/hr as a soil mechanics/ testing technician. I trained a technician who had an engineering physics job and he was paid more than me from the start; I heard from some rumors. He gave up on tests and was useless overall even after six months. Plus, I had been working with them for 2 years by that point. Obviously, I left and went on vacation, which felt beautiful compared to the treatment I received at this company. However, this was a small company so the estimation of $40k to $50k is about right.
What is the payscale for geologists?
The payscale for geologists can vary depending on factors such as experience, education, location, and the specific industry they work in. On average, entry-level geologists can expect to earn around $50,000-$60,000 per year, while experienced geologists with advanced degrees and certifications can earn $80,000 or more. Salaries can be higher in industries like oil and gas exploration compared to government or environmental consulting roles.
How do you determine the age of a feldspar sample?
Feldspar has 98 atoms of 40Ar every 97 atoms of 40K. 10.9% of 40K decays to 40Ar. t(1/2)=1.25E9 0.693/1.25E9= 567E-10 = K
Why Ar is abundant while other Noble gases are not?
Firstly, 36Ar is the most preferred isotope of Ar produced in nuclear synthesis in supernovas, which is where most of our elements are manufactured.Secondly, 40Ar is manufactured from the decay of 40K - about 10% of the time. (The other 90% of the time, 40K decays are into 40Ca.) This radioactive decay is the most common source of 40Ar, and accounts for over 99% of the Ar on Earth - and for its preponderance.He should be much more common, but being so light, it is easily lost from the atmosphere to scavenging by the Solar Wind.
What is the difference between Warhammer 40k and 40k Epic?
Answer Warhammer Epic is much smaller than 40K. It is also cheaper.
How much is 40k?
40,000
How much would you make as a lawyer?
Depending on when you start you can make from $40k to more than $250k
How much is a hummer in Michigan?
40k
How much is 40K in dollars?
40,000
Which elements mass is 40.115?
It could be Ca (though my tables give it a mass 40.08)(or otherwise a relatively heavier isotope of a lighter element as 40K or 40Ar, but actually I couldn't find one with this mass)
How much gold would it cost in Wizard101 to hatch a Minotaur with a void Basilisk?
I would say, somewhere around 30k- 40k gold
If the age of the Earth is 4.5 billion years and the half-life of 40K is 1.26 billion years what percent of the Earth's original amount of 40K remains today?
Approximately 25% of the Earth's original amount of 40K remains today, given that one half-life of 40K is 1.26 billion years. This means that half of the original amount decayed in 1.26 billion years, leaving behind the remaining 50%, which is now further decaying to reach 25% after 4.5 billion years.
How much money is 40k?
Forty Thousand Dollars
How much does a fashion buyer make in a year?
about £40k
