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Radioactive Elements
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Radioactive Elements
Answers to Common Questions
Alfred Hershey and Martha Chase set out to determine what composed the genetic material of a bacteriophage. ChaCha again!
Radioactive elements are elements that have an unstable nucleus. When the nuclei are considered unstable they radiate alpha, beta, and gamma radiation and is converted into a stable element. Elements are considered radioactive if they are e...
Some elements that are radioactive are technetium, promethium, polonium, astatine, and radon. Others include francium, radium, actinium, thorium, protactinium, uranium, neptunium, plutonium, and curium. For more information, look here: http...
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Answers to Other Common Questions
For example, assume that a certain isotope (sub-type of an element) has a half-life of a million years, then after a million years only half of the substance is left, after two million years 1/4 of the original amount, etc. To use this calc...
http://wiki.answers.com/Q/How+scientists+use+radioactiv...
Why Are Elements Radioactive? Unstable nucleus: Has excess energy. Wants to go to “ground state.” Becomes stable by emitting ionizing radiation. What does “ionizing” mean?
http://www.authorstream.com/presentation/mousta-107088-...
"No" Lithium batteries are primary batteries that have lithium metal or lithium compounds as an anode. Depending on the design and chemical compounds used lithium cells can produce voltages from 1.5V to about 3V twice the voltage ...
http://askville.amazon.com/batteries-radioactive-elemen...
Radioactivity is a very interesting phenomenon in nature. Classical Electromagnetism cannot explain radioactivity. It's a spontaneous and random phenomenon whereby nuclei of certain chemical elements like Uranium, radiate gamma rays (high f...
http://www.buzzle.com/articles/list-of-radioactive-elem...
If the ratio of protons to neutrons is not within certain limits in an atom,protons may not be held firmly together,and they form an unstable nucleus. This is what makes isotopes of some elements radioactive.
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Five radioactive elements are polonium, astatine, radon, thorium, and uranium. Thanks for using ChaCha!
http://www.chacha.com/question/what-are-5-radioactive-e...
They emit high energy particles, ionizing atoms in organic cells and disrupting many normal reactions in the cell.
http://wiki.answers.com/Q/How_are_radioactive_elements_...
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