help! (this is for a school project) what are the uses of Nobellium (No), element #102?
87922
Probably not many uses. It has a half life of 58 minutes. You can read about it at the link.
265334
look here\n\nhttp://webbook.nist.gov/chemistry/
700039
nitrogen - Liquid nitrogen is used for cooling experiments\noxygen - Always used in breathing and burning fuel. Given in hospitals, used as rocket fuel. \ncarbon dioxide - Used in carbonated drinks, fire extinguishers, and dry ice.\nargon - used as an inert gas to prevent reactions and preserve things.\nhelium - Used in balloons and helium-neon lasers.\nneon - Used in neon signs and helium-neon lasers.\nmethane - Is natural gas, used for heating & generating electricity.
961493
You need to know more than just the electron configuration.  There is contraction from left to right on the periodic table, plus additional periodic trends that must be considered.   \n\nEven more importantly, you need to define whether you are looking for the largest element IN ITS NATURAL  STATE (i.e. Cl2, Hg metal, etc) or AS THE ION.   Atomic and ionic radii differ.\n\nMore clarity is needed here.
223202
goto http://www.webelements.com/ or better stillhttp://www.schoolscience.co.uk/periodictable.html run over the element with your mouse it tells you what it is
708353
Hmm. . its pretty rare stuff so you are not going to hand out samples\nSince it was once used in lasers you could start your presentation with a laser light show, or just a simple laser pointer\nPresent the information chronologically, show how and why it was discovered (it started as a blank square on the Periodic Table of the Elelments) talk about it uses and why it was replaced\ngood luck
644486
This might help\n\nhttp://216.109.125.130/search/cache?p=how+was+tantalum+discovered&sp=1&ei=UTF-8&fr=FP-tab-web-t&SpellState=n-3467474897_q-gL5DN60DdgiG3lMcas4afwABAA%40%40&u=www.scescape.net/%7Ewoods/elements/tantalum.html&w=tantalum+discovered&d=PMQ_k0aqMkbj&icp=1&.intl=us
827237
Hydrogen\nOxygen\nCarbon\nNitrogen\nPhosphorus\nSulphur
398158
You are wrong NATURAL lead is a mixture of four stable isotopes (read NON-radioactive): 204Pb, 206Pb, 207Pb, and 208Pb . These four isotopes are the end products of each of the three series of naturally occurring radioactive elements: 206Pb for the uranium series, 207Pb for the actinium series, and 208Pb for the thorium series. Twenty seven OTHER isotopes of lead, all of which are radioactive, are recognized.\n\nLead is used as shielding because of its density. Remember that there is nothing magic about lead. Wood, air or styrofoam for that matter would work as well, but because of the density differences the same amount of shielding provided by 1" of lead might take 30" of wood or 50" of styrofoam
441550
The nonmetals are halogens, noble gases and the following elements in order of atomic number (nonmetals as chemical series):\n\nhydrogen (H) \ncarbon (C) \nnitrogen (N) \noxygen (O) \nphosphorus (P) \nsulfur (S) \nselenium (Se) \n\nhere's an example:\n\nhttp://en.wikipedia.org/wiki/Periodic_table_%28metals_and_non-metals%29
879268
Zinc is by far the best element. I also like plutonium.  It's just fun to say. "Plutonium."
905430
Beryllium is a moderator...it is used to slow down neutrons
136909
If you have the letter names, use the Periodic Table of Elements.  If not, use PH paper, and that might help.  Go by color, soluability, and texture.
906746
a)silver bromide\nb) tricalcium phosphate\nc)Lithum Hydride\nd)Radium Chloride
697957
Hello \n\nYou might be interested in contacting this group I found in a google:\n\nhttp://www.science.uva.nl/misc/nimf/uk.pdf\n\nLooks interesting!
381120
look it up on any periodic table - like the one linked below... good luck!
1003957
You can out smart him and give him more than 25.\n\nCheck out the link and print the page and take it in.\nThere is another link on that page at the bottom called Chemical composition of living beings.  That will give you even more resources and info.\n\nHave fun getting the upper hand this time, but be nice to your teacher.  Please.