What is a Periodic Table?
106902
it's a table of all the elements in the universe that humans know about.\n\nhere are some pictures:\n\nhttp://images.google.com/images?imgsz=xxlarge&svnum=10&hl=en&safe=off&q=periodic+table&spell=1
709043
A group, also known as a family, is a vertical column in the periodic table of the elements. \nGroups are considered the most important method of classifying the elements. In some groups, the elements have very similar properties and exhibit a clear trend in properties down the group — these groups tend to be given trivial (non-scientific) names, e.g. the alkali metals, alkaline earth metals, halogens and noble gases. \n\nSummary of Periodic Table Trends \n\nMoving Left --> Right \n\nAtomic Radius Decreases \nIonization Energy Increases \nElectronegativity Increases \nMoving Top --> Bottom \n\nAtomic Radius Increases \nIonization Energy Decreases \nElectronegativity Decreases \n\n\nThe Boron group is the series of elements in group 13 (IUPAC style) in the periodic table. These elements are characterized by having three electrons in their outer energy levels (valence layers). Boron is considered a metalloid, and the rest are considered metals of the poor metals group.\n\nThe boron group consists of boron (B), aluminium (Al), gallium (Ga), indium (In), thallium (Tl), and ununtrium (Uut) (unconfirmed).
58313
Boron is a chemical element in the periodic table that has the symbol B and atomic number 5.
403502
Here is one : http://en.wikipedia.org/wiki/Periodic_table
273781
The platinum group or platinum metals is the collective name sometimes used for six chemical elements within the periodic table. These elements are all transition metals, lying in the d-block (groups 8, 9, and 10, periods 5 and 6 - in Mendeleev's original table, this area was called "Group VIII").\n\nThe six platinum metals are: ruthenium, rhodium, palladium, osmium, iridium, and platinum. They have similar physical and chemical properties, and tend to occur together in the same mineral deposits.
1157452
The first 92 elements of the periodic table occur naturally (from hydrogen to uranium).\n\nBTW, in reference to earlier poster, some of the naturally occurring elements (radon, radium, uranium, others) are radioactive, as well.
735240
Your question lacks clarity.  Is the question about an element on the periodic table? If it is - and once again, you don't specify - then a likely answer is "Thorium" named after Thor, the greek god of thunder.  I don't know, you didn't actually give any context with the question.  I suggest going to www.wikipedia.com for help with anything, though.   \n\nThe second question, about the order of the planets by rotation - do you have a science book?  That would help you more than the internet because the answers will all be there.  Open the book, go to the chapter(s) about planets, take out a piece of paper, and write down the name of the planet next to the length of the respective planet's day.  When you have all of the written down, you will be able to order it.  \n\nHere is some extra help for you for a question you did not ask but clearly need answered:\n\n"Your" is possessive - "Your eyes are like deep buckets of molasses" \n\n"You're" is an abbreviation of "You are".
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Each group in the periodic table has a characteristic valency (or set of valencies).  This is what you learn.  Look through your text for the valencies of atoms in compounds to give you a feeling for the elements that can have several valencies (like the transition metals).
30888
I'm not really sure what you mean, but here's a good site to look at the periodic table.\n\nhttp://en.wikipedia.org/wiki/Periodic_table
835475
I think ur referring to the chemical definitions.\n\nIn the periodic table, groups are the vertical columns having similar elements... ie. they have the same valencies leading to similar properties.. Example Group 1: has valency 1.. (Na, K etc)\n\nperiods are horizontal rows having elements with the same number of shells.. ie.. 1st period elements have only one shell (H and He - K shell).. 2nd period elements have 2 shells (K,L) and so on..\n\nLook up wikipedia for more info..
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The discovery of the periodic table was based upon behavior as determined by the skeptical chymist.  A new element meant unique behavior on the part of the element and so the behavior was identified, and the element associated with it.
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Here you go: http://en.wikipedia.org/wiki/Periodic_table\n\nAhhh.. good old Wikipedia. :)
1070133
oxygen, nitrogen, every fuckin mineral and more on the periodic table...take chemistry
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58.93\nJust go to your Yahoo search page and type in 'Periodic Table'
876590
No. Look at the periodic chart, also called the table of elements. Its even in the dictionary. So is alkaline. Finding that would have been easier than going to Yahoo answers, had you tried.
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Elements-A substance composed of atoms having an identical number of protons in each nucleus. Elements cannot be reduced to simpler substances by normal chemical means. \n\nCompounds-A pure, macroscopically homogeneous substance consisting of atoms or ions of two or more different elements in definite proportions that cannot be separated by physical means. A compound usually has properties unlike those of its constituent elements. \n\nMixtures-A composition of two or more substances that are not chemically combined with each other and are capable of being separated. \n\nHope this helped
337610
Transitional metals are the metals in the middle of the periodic table of elements.