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Uranium-235 has a half-life of 700 million years. how long does it take a 100-gram sample of uranium-235 to decay to a mass of 50 grams?
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∙ 7y ago
700 million (more exactly 703,8.106) years
Stanley Brakus
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A uranium235 sample starts with 200 atoms and 700 million years later there are 100 atoms What is the halflife of uranium235?
700 milliion years. The definition of half-life is the period of time during which one-half of the atoms of an element undergo decay into other elements.
Uranium-235 has a half life of?
The half-life is 700 million years !
What is the half life of uranium 238 if 85.719 percent of any given amount remains after 1 billion years?
Natural uranium contain 0,7204 % uranium 235.
What are the common uses for neptunium?
- intermediate in the preparation of plutonium 238 - in the instruments for the detection of high energy neutrons - possible use in the future as material for nuclear weapons - possible use in the future as nuclear fuel
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a million million million million million million million million million million million million million million million million million million million million million million Trillion
How long does it take to make uranium?
The isotope U-238 has a halflife of 4.5 billion years, roughly the current age of the earth. As the sun is expected to consume the earth in about 6 billion years from now, less than 1.5 halflives will have passed by then. Therefore uranium will remain in the environment as long as earth exists, although at slowly decreasing levels.
How many particles are in the world?
ten million million million million million million million particles in the world
How much more is fair trade chocolate than normal chocolate?
well a bar of fair-trade chocolate from cadburys cost £1.o9 22p goes to tax 32p goese to the supermarket 46p goes to cadburys 2p goes to transport and packaging 11p to manerfacturing costs 1p to cocoa solids (for a 100 gram chocolate bar simon smells)
What is the mumber 5 million million million million?
5,000,000,000,000,000,000,000,000
What is 1 million plus 1 million?
1 million + 1 million = 2 million.
What is 4.7 million from 23 million?
23 million minus 4.7 million = 18.3 million.
What is a million million called?
million
