How do you find a Becquerel in a radioactive element without a radiation meter? Why does the periodic table work? What is the formula for radioactive decay? How to calculate how many rings are there in an atom? Choose the most likely set of mass numbers for these two bromine isotopes. ...
The differences in matter comes down to the tiniest differences in atomic structure. TL;DR (Too Long; Didn't Read) Understand that isotopes of an element have different mass numbers but the same number of protons. Using the Periodic Table, find the atomic number of the element. The atomic ...
People may even think about creating and immediately using isotopes with very short half lives, which can release large amounts of high energy particles, as the particle source of an accelerator. This device to be used as both the engine of a spaceship and the energy center of a space base...
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Natural uranium from a mine contains two isotopes: U-235 and U-238. The U-235 is what is needed to produce nuclear power (see How Nuclear Power Plants Work for details), so the uranium is refined to extract the U-235 and create "enriched uranium." The U-238 that is left over is ...
2\. Themass numberor the number neutrons and protons in the nucleus is the superscript (12 in the example above). Mass number = # of neutrons + # of protons. Hint: This is the number to look out for when examining isotopes. 3\. Theatomic numberor the number of protons (Z) is the...
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X-ray machines seem to do the impossible: They see straight through clothing, flesh and even metal thanks to some very cool scientific principles at work. Find out how X-ray machines see straight to your bones. The voltage difference between the cathode and anode is extremely high, so the...
Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Furniture; bedding, mattresses, mattress supports, cushions and similar stuffed furnishings; lamps and lighting fittings, not elsewhere specified or included; illuminated si...
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