Does anybody know the trends found in the periodic table?
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There are various trends/properties observable in the periodic table of elements:\n1. The elements in a column have same number of electrons in the outermost orbit of the atom. And this number is same as the column number. e.g. column no. 7 has elements (Fluorine, chlorine, bromine, iodine, astatine) that have exactly 7 electrons in their outermost orbit.\n2. The last column (8) are all inert gases.\n3. First three columns are metalic (conductors), last four are insulators, the middle (4th) is semiconductor (with Carbon and Silicon).\n4. The number assigned to an element is same as no.of protons in the nucleus of the atom.\n5. As the atomic number increases, weight of element increases. Thus Hydrogen is the lightest of all. Also first few are gases, then liquids, then light metals, then heavy metals.\n6. First two columns are rare earths and earths.\n7. After and including Uranium (92), all elements are radioactive.\n\nYou can find more info online.
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I'm not exactly sure what you mean by that, but the periodic table has a list of all the chemical symbols.\n\nhttp://en.wikipedia.org/wiki/Periodic_Table#Standard_periodic_table\n\nAll matter comes from combinations of these elements.
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look up the periodic table...duh
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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
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For up to date gold graphs look here:\n\nhttp://www.kitco.com/charts/livegold.html\n\nOther precious metals on the same site.
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The Periodic Table of the Elements, as developed by Mendeleev.
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This guy:\n\nhttp://www.theodoregray.com/PeriodicTable/\n\nhas some great pictures of samples of elements.
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http://www.google.com/trends
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Gold\n\nCheck out the cool interactive periodic table in the links below.
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There are 118 elements on the Periodic Table.
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The electronegativity generally increases as you go from left to right across the periodic table. It decreases as you go down the periodic table.\n\nI think you can see that the reason for this is going to depend on those same factors that we used to explain the trends in atomic size, ionization energy, and electron affinity. \n\nFirst, the horizontal comparison. As you go across a period from left to right, the atoms of each element all have the same number of energy levels and the same number of shielding electrons. Thus the factor that predominates is the increased nuclear charge. When the nuclear charge increases, so will the attraction that the atom has for electrons in its outermost energy level and that means the electronegativity will increase. \n\nThus the Periodic chart will not only tell you which metal has the most electronegetivity , but the order of all metals
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This is an answer I gave a few weeks ago. It helped me to get from failing Chemistry to University....maybe it will help you to understand the periodic table as well.\n\nMy Chemistry teacher taught me a great story which helped me learn the elements, which groups they were in, which periods, how many electrons they had etc and resulted in me going from a grade F to B. Every kid should learn this.\n\nHorrible Hairy Little Begger Boys Catch Newts On Friday Near Naples, Magnificent Albert Sits Planning Some Clever Arrangement Keeping Calm.\n\nOk, looks crazy until you break it down;\n\nH He Li Be B C N O F Ne Na, Mg Al Si P S CL Ar K Ca\n\nThen put it into the table\n\nH\nHe\nLi Be B C N O F Ne\nNa Mg Al Si P S Cl Ar \nK Ca\n\nYou will need to line them up because Yahoo has left align, but the trick is the story. \n\nThe groups 1-8 (across the table) tell you how many electrons are in the outer shell, the periods (down the table) tell you how many shells an element has. etc\n\neg Sodium (Na+, group 1) bonds with Chlorine (Cl- , group 7) because Chlorine has 7 electrons in its outer shell. It needs the one from sodium to become stable.....NaCl (kitchen salt). This is the basis for other compund formation....ie water H2O and so on.\n\nLearn the story above and everything will fall into place.\n\nHope this helps!
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Matter (116 Elements known so far) (94 of them found elsewhere in the universe, to date) and anti-matter (the same elements but with anti-protons in the nucleus and positrons instead of electrons circling around the nucleus),\n\nWhat are these Elements called?\n\nIn 1959 Tom Lehrer sang the following ditty to a Harvard audience (to the tune of Gilbert and Sullivan's I am the Very Model of a Modern Major General)\n\n``There's antimony, arsenic, aluminum, selenium, \nAnd hydrogen and oxygen and nitrogen and rhenium \nAnd nickel, neodymium, neptunium, germanium, \nAnd iron, americium, ruthenium, uranium, \nEuropium, zirconium, lutetium, vanadium \nAnd lanthanum and osmium and astatine and radium \nAnd gold, protactinium and indium and gallium (inhale) \nAnd iodine and thorium and thulium and thallium. \n\n``There's yttrium, ytterbium, actinium, rubidium \nAnd boron, gadolinium, niobium, iridium \nAnd strontium and silicon and silver and samarium, \nAnd bismuth, bromine, lithium, beryllium and barium.  \n\n``There's holmium and helium and hafnium and erbium \nAnd phosphorous and francium and fluorine and terbium \nAnd manganese and mercury, molybdinum, magnesium, \nDysprosium and scandium and cerium and cesium \nAnd lead, praseodymium, and platinum, plutonium, \nPaladium, promethium, potassium, polonium, and \nTantalum, technetium, titanium, tellurium, (inhale) \nAnd cadmium and calcium and chromium and curium. \n\n``There's sulfur, californium and fermium, berkelium \nAnd also mendelevium, einsteinium and nobelium \nAnd argon, krypton, neon, radon, xenon, zinc and rhodium \nAnd chlorine, carbon, cobalt, copper, \nTungsten, tin and sodium. \n\n``These are the only ones of which the news has come to Harvard, \nAnd there may be many others but they haven't been discovered.'' \n\n(a few of the 116 eg Seaborgium were discovered after 1959 and are therefore not in the song)\n\nFor a Flash animation of the song go to \nhttp://www.privatehand.com/flash/elements.html
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yes there are many start with hydrogen and then move up the periodic table of ELEMENTS\n\nsorry for the pause ( the boss walked by )
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Los Alamos national lab has a good periodic table/ elemental factoids.\n\nLanthanum is La.  It is the beginning of the "Lanthanides".
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The order of elements in the periodic table is determined by their atomic number, or number of protons (positively charged particles. The nucleus of the element is made up of protons and neutrons (neutral subatomic particles), and nearly all of the mass of the element resides here. \n\nElectrons "circle" the nucleus to even out the charge of the atom. The electrons organize themselves in layers, with a certain number of electrons in each layer. These layers are also referred to as the valence of the electron. The first layer has 2 electrons, the second and third have 8, the fourth has 18... These layers are what give the atom its volume.\n\nSince density is mass/volume, there isn't a linear relationship for density in each successive element, but the trend is density increases from left to right and top to bottom.
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My Chemistry teacher taught me a great story which helped me learn the elements, which groups they were in, which periods, how many electrons they had etc and resulted in me going from a grade F to B. Every kid should learn this.\n\nHorrible Heary Little Begger Boys Catch Newts On Friday Near Naples, Magnificent Albert Sits Planning Some Clever Arrangement Keeping Calm.\n\nOk, looks crazy until you break it down;\n\nH He Li Be B C N O F Ne Na, Mg Al Si P S CL Ar K Ca\n\nThen put it into the table\n\nH\n                   He\nLi Be  B C  N O F  Ne\nNa Mg Al Si P S Cl Ar \nK  Ca\n\nYou will need to line them up because Yahoo has left align, but the trick is the story. Hope this helps