I want know all about the first twenty elements,their oxidation number,atomic number,physical and chemical properties,relative molar mass,acidity.
213510
google it and type 'periodic table, first twenty elements'\nn u'll get sumthing, far quicker than lettin sum1 write them up 4 u.
80601
mono = 1\ndi = 2\ntri = 3\ntetra = 4\npent = 5\nhex = 6\nhept = 7\noct = 8\nnon = 9\n\nnonmetals:\nif there is no prefix for the first element, it is assumes to be one.\nTHe ening of the anion (the second one listed) is changed to -ide.\n\ncarbon - 1 \noxygen - 2\nCO2  <---The number is a subscript, but you cant do that on here\n\nPhosphorous - 1\nIodine - 3\nPI3\n\nHydrogen - 2\nOxygen - 1  (it should be monoxide)\nH2O\n\nHope that helps you.  Don't feel bad; you can't know what you haven't learned.
488679
You should probably supply a list of chemicals.  If you really want this information about every single chemical known to man, you will have to get it in book form.
30784
I'd expect to find it grouped with alkali metals, atomic number 11, Group 1, Period 3, Block s :)
164636
Try this for research info http://www.webelements.com/webelements/elements/text/Pu/key.html
27160
Here is some interesting facts on elements:\n\nhttp://www.pidc.com/prod_facts.html\n\nInteresting facts about gems and precious stones:\n\nhttp://www.indygem.com/productinfo_interesting.htm\n\nMetals and Alloys\n\nhttp://chemistry.about.com/od/metalsalloys/\n\nI hope that I found enough facts for you.  If you want more, just ask.  {smile}
460005
try using www.chemtutor.com, it helps you understand those kind of problems
308601
You're best off searching the NIST webbook database\n\nhttp://webbook.nist.gov\n\nhttp://www.freewebs.com/chemistryhomework
524127
a) [O 2-]\nb) [ I - ]\nc) [Na+]\nd) [Al 3+]\ne) [Ni 2+]\nf) [Mg 2+]
147596
you would also use one of the following equations typically depending on the other information your given, but for sure, you need to look up its chemical composition. (ex: water is H2O)\n\nif youre given concentration:\nconcentration=moles/volume\nmoles=mass/molar mass\nmass=moles*molar mass\nmass=(concentration*volume)(molar mass)\nkeep in mind molar mass can be found by adding and multimplying as necessary the atomic masses of each element in the compound.\n\nif youre given density (which i bet you can easily look up on google or something if youre not given that information):\ndensity=mass/volume\nmass=density*volume
515349
acid\ngas naphtha\noxygen  and hydrogen\nacid\nacid
414179
you need a periodic table... just look for the symbol NA... and the atomic number 15, also look for it on the table.. it shud be under the 2-3 letter symbol of the element.
611852
(im taking chem 1411 in college, and this is how our class is setup)\n\n-Basics of Chem\n- Structures of Atoms and Molecules\n- Solutions, Substances, and Mixtures\n-States of Matter\n- Chemical Reaction\n- Nuclear Chemistry\n- Elemental Chemistry\n- Introduction to Quantum Chemistry and Physics
224492
Elemental symbol is S. Atomic number is 16, and Mass number 32, which means it has 16 protons, 16 electrons and 16 neutron. It is in period 3 in the periodic table and group VI which puts it in the p-block. This means that it has 6 elctrons in its outer shell, and three electronic shells all together. It can be found in meteorites, hot springs and volcanoes, and Jupiters Moon Io is made up mainly of sulfur compounds. In it's pure form it is a pale yellow, odourless, brittle solid which is insoluble in water. It is vital to life as it is a minor (but essential) constituent of fats, body fluids and skeletal minerals. Sulfur dioxide in the atmosphere is one of the main causes of acid rain.\n\nHope that helped
298119
Element Zinc - Zn\nComprehensive data on the chemical element Zinc is provided on this page; including scores of properties, element names in many languages, most known nuclides of Zinc. For many elements information on common compounds of is now provided as well. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one studies. Using the "Periodic Table of Elements Quick Navigation" graphic at the bottom of the sidebar menu, one can quickly jump from chemical element to chemical element.
80839
1. acid\n2. salt\n3. no idea\n4. salt\n5. base\n6. no idea\n7. salt\n8. base\n9. salt\n10. acid\n11. base
496652
check this site out\n\nhttp://www.chemicalelements.com/elements/al.html