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What is abundance?
It is the ratio of the total mass of a specified element in the earth's crust of ten expressed as a percentage. For example, the abundance of aluminum in the earth's crust is 8 percent
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What is the abundance of plutonium?
Read the paragraph Occurrence at:
http:/en.wikipedia.org/wiki/Plutonium#Occurrence
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What is fractional abundance?
atomic weight are average atomic masses, the sum of the mass of each naturally occurring isotope of an element times its fractional abundance. OR All elements exist as isotopes in nature. This means...
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What is the abundance of radium?
Radium abundance in the earth crust: 9.10-7 mg/kgRadium abundance in the sea water: 8,9.10-11 mg/L
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What is a relative abundance?
The concentration of each isotope of a natural chemical element.