When trying to find the number of neutrons, protons or electrons that different chemical species have, the periodic table is your best friend. Take a look at how to use the periodic table as well as nuclear not
How Many Neutrons? The difference between isotopes of an element depends on the number of neutrons. To find the number of neutrons in an isotope, find the mass number of the isotope and the atomic number. The atomic number, or number of protons, is found on the Periodic Table. The ...
Many paints today contain phosphors that will glow under a black light, while most older paints do not contain phosphors. Repairmen use them to find invisible leaks in machinery -- they inject a little fluorescent dye into the fuel supply and illuminate it with a black light. For example, ...
It turns out that there are many different things you can do with two pieces of glass, and these things can have a big effect on you when you use the lenses. As you will see in this article, there really is a difference between the various sunglasses you'll find out there. There ...
"The majority of one-off ("soft") errors in DRAM chips occur as a result of background radiation, chiefly neutrons from cosmic ray secondaries, which may change the contents of one or more memory cells or interfere with the circuitry used to read/write them." ...
There are holograms on most driver's licenses, ID cards and credit cards. If you're not old enough to drive or use credit, you can still find holograms around your home. They're part of CD, DVD and software packaging, as well as just about everything sold as "official merchandise...
How do you calculate the half-life of a radioactive isotope? A beta particle is a high speed electron from the nucleus. This is not to be confused with electrons in the electron cloud. If the nucleus consists of only protons and neutrons, how is it possible for ...
a. involves the conversion of mass into energy b. free neutrons are critical for initiating and sustaining a chain reaction c. harnessed on a large scale to p Is hydrogen-2 more likely to undergo nuclear fusion or nuclear fission? Explain. Where do we see the fission and fusion reactions ...
This soup of electrons, protons, and neutrons needs to push the mercury to at least 100 million degrees Celsius (for deuterium-tritium reactions), but getting plasma that hot isn’t necessarily the hard part. Making sure that plasma stays confined and doesn’t touch anything else—well, that...
This illustration shows NASA's Mars Opportunity Rover, the second of the two Mars Exploration Rovers to land on the Red Planet in 2004 to search for signs of past life. NASA/JPL-Caltech It seems easy enough: If we can blast a man to the moon for a round of golf, why do we have...