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"Un-Natural" isotopes are released by open air detonation of nuclear weapons; gases escaping from nuclear reactors; improper containment and storage of radio active wastes; use of isotopes for medical treatments (very low amounts emitted). "Natural" isotopes are released by volcanic activity, open pit and deep shaft mining, geothermal springs, oceanic floor rifts, created by collision with cosmic rays, ultraviolet decomposition or chemical re-arrangement of atmospheric molecular structures, etc.
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∙ 13y ago
Wiki User
∙ 11y agoatmospheric nuclear weapons tests.
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How are isotopes and ions and elements produced?
You add or remove one or more neutrons from each atom.
How do humans add nitrogen to the biosphere?
Humans add nitrogen to the biosphere primarily through the use of synthetic fertilizers in agriculture, which then gets taken up by plants and enters the food chain. Additionally, industrial processes involving nitrogen, such as the production of ammonia, also introduce nitrogen into the environment.
Compare the atomic numbers of isotopes to mass number of the same element?
The atomic number of isotopes of the same element is the same because they all have the same number of protons in their nucleus. The mass number of isotopes, however, can vary because it is the sum of protons and neutrons in the nucleus, and different isotopes can have different numbers of neutrons.
Why cant you add the average masses of each of the isotopes and divide to get overall average of the atoms?
Because the isotopes do not appear in equal amounts. This is hardly surprising since many isotopes experience radioactive decay and change to other elements after decay while stable isotopes persist - thus stable isotopes will usually dominate as the most common isotopes for individual elements with those with the longest half-lifes being more common than those with shorter half-lifes. Of course when you get into the heaviest elements there don't seem to be any stable isotopes so those with longest half life dominate.
How do radioactive isotopes add to earths heat?
Radioactive isotopes, such as uranium and thorium, undergo radioactive decay, releasing energy in the form of heat. This heat contributes to the overall heat budget of Earth. Radioactive isotopes are present in the Earth's crust and mantle, and their decay helps maintain the planet's internal heat flow.
How are isotopes and ions and elements produced?
You add or remove one or more neutrons from each atom.
What are humans doing to add to the green house gas effect?
burning fossil fuels, chopping down trees and generally killing the environment
How do humans add nitrogen to the biosphere?
Humans add nitrogen to the biosphere primarily through the use of synthetic fertilizers in agriculture, which then gets taken up by plants and enters the food chain. Additionally, industrial processes involving nitrogen, such as the production of ammonia, also introduce nitrogen into the environment.
Compare the atomic numbers of isotopes to mass number of the same element?
The atomic number of isotopes of the same element is the same because they all have the same number of protons in their nucleus. The mass number of isotopes, however, can vary because it is the sum of protons and neutrons in the nucleus, and different isotopes can have different numbers of neutrons.
Is melting a process to add heat energy to the environment?
No. It takes heat from the environment.
Why cant you add the average masses of each of the isotopes and divide to get overall average of the atoms?
Because the isotopes do not appear in equal amounts. This is hardly surprising since many isotopes experience radioactive decay and change to other elements after decay while stable isotopes persist - thus stable isotopes will usually dominate as the most common isotopes for individual elements with those with the longest half-lifes being more common than those with shorter half-lifes. Of course when you get into the heaviest elements there don't seem to be any stable isotopes so those with longest half life dominate.
Why not add the juice before the alcohol?
because it is very dangerous
Do humminbirds have benefits or add anything to your environment?
If you make a nice environment, hummingbirds add color and spark to your home and they help pollinate flowers for a more hearty bloom!!
Does a green plant add oxygen to its environment?
yes
Is it dangerous to health if you heat lead?
only if you breath it in it is dangerous and can give you cancer or ADD or ADHD so yes it can be harmful.
How do humans add to the erosion process?
they say that is is afual
What are the ratings and certificates for H2O Just Add Water - 2006 Dangerous Waters 1-9?
H2O Just Add Water - 2006 Dangerous Waters 1-9 is rated/received certificates of: Australia:G
