What is an alien periodic table?
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Usually in an activity like this you are given clues as to the chemical and physical properties of each element.  the properties are the same, but the names are different. Use the clues given and what you can find out about the properties of the different families of elements to complete the activity.
24017
With modern chemistry and quantum physics knowledge, we know 104 elements. \n\nAn element is defined by proton count, which in turn determines the number of electrons in orbit. Hence we know we aren't missing any elements in between, all numbers between 1 and 104 are known.\n\nThis leaves elements with proton counts of 105 or greater. The greatest difficulty in identifying these is that they are extremely unstable. The observer needs to be lucky and skilled to observe one of these superheavy elements before it decays.\n\nEven more so since these elements are produced by colliding heavy ions at high speed, creating lots of  energy at the collision. Capturing such an element and identifying its mass charge ration in a mass spectrometer or getting spectroscopical data that can be fitted to the theoretical energies one would expect is hard under these circumstances.
534523
We are aliens ourselves! The matter that makes up our bodies was created millions of years before the earth existed!
8701
You need to look at a Periodic Table. The farther to the left of the table an element is, the more metallic it is.
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http://chemlab.pc.maricopa.edu/PERIODIC/periodic.html\n\nHere you can click on an element and see facts on it.\n\nCa<Cr<W
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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.
726408
Streams of matter and antimatter directed into crystallized dilithium generate plasma that is used to power the warp drives that allow starships to travel faster than light. \nDilithium's chemical symbol is Dt, its atomic weight is 87 and it is a member of the hypersonic series of elements.\nIt is established that a large amount of dilithium can cause a planet to become geologically unstable.\n\n\n\n\n\n\nAnd Now The TRUTH!\nDilithium and higher numbers of covalently bonded lithium atoms do exist in the real world, albeit in small quantities. It has been observed, for example, that 1% of lithium in the vapor phase (by mass) is in the form of dilithium. Clusters of lithium atoms also exist; the most common arrangement is Li6.
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At the bottom of the perodic table...\n\nThey are technetium (at. no. 43), which was the first element to be synthesized, promethium (at. no. 61), astatine (at. no. 85), francium (at. no. 87), and the transuranium elements (at. no. 93 and beyond in the periodic table). Some of these elements have since been shown to exist in minute amounts in nature, usually as short-lived members of natural radioactive decay series (see radioactivity).\n\nThe synthetic elements through at. no. 100 (fermium) are created by bombarding a heavy element, such as uranium or plutonium, with neutrons or alpha particles. The synthesis of the transfermium elements (elements with at. no. 101 or greater) is accomplished by the fusion of the nuclei of two lighter elements. Elements 101 through 106 were first produced by fusing the nuclei of slightly lighter elements, such as californium, with those of light elements, such as carbon. Elements 107 through 112 were first produced by fusing the nuclei of medium-weight elements, such as bismuth or lead, with those of other medium-weight elements, such as iron, nickel, or zinc. Element 114 was first produced by fusing the nuclei of plutonium and calcium and subsequently by fusing the nuclei of lead and krypton, as was element 116. Element 115 was produced by bombarding americium with calcium, and element 113 resulted from the radioactive decay of element 115. The claim by Lawrence Berkeley National Laboratory to have created element 118 has been retracted.)\n\nThe transfermium elements are produced in very small quantities (one atom at a time), and identification is therefore very difficult because of half-lives ranging from minutes to milliseconds and the need to identify the products by methods other than known chemical separations. This has led to controversy over reported discoveries and over the naming of the elements. It has been predicted that one isotope of element 114—containing 114 protons and 184 neutrons—would be very stable because its nucleus would have a full complement of protons and neutrons. Termed an “island of stability,” its half-life might be measured in years. However, none of the three isotopes of element 114 synthesized as yet have as many as 184 neutrons, and their half-lives are still in the millisecond range.
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alien: >-o\ncoffee cup: ~O)\nmonkey: :(|)\nFlag: **==
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No no no.  Alien is a living being outside of Earth.  Air is not a living thing and is on Earth.
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If aliens do indeed exist ( and, given the vastness of the universe, it seems likely ) we cannot know their state of scientific knowledge.  Given an advanced culture, one would assume that elements would be placed in some sort of table based on the behaviour of said elements, and would almost certainly be identical to ours in structure.\n\nIf you're asking about different elements beyond the ones we know, well that too is a virtual certainty; we make new ones all the time...I don't doubt that there are many more than we know about.\n\nWell done for thinking about these things.\n\nEDIT :  Existence is existence, whether an atom of an element exists for a microsecond or a million years.  Furthermore, although many elements are unstable - in order to BE unstable, an element must first exist.  Moreover, well...let's just say islands of stability and the show ain't over 'til the fat lady sings....
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Technically, there are no ions on the periodic table, only elements.\n\nWhen an atom becomes an ion, it either looses to gains an eletron to develop a charge.  When this happens, the atom no longer behaves the way it normally would, it now has a charge and is attracted to other atoms with opposite charges.\nTo distinguish between normal atoms and atoms with charges, we change their names slightly (but I wouldnt call it "wierd").  For example, when a Chlorine atom gains an extra electron to fill its octet, we call it the Chloride ion.  However, we do not change the names of the cations (+), we just add the number of the charge to the end of the same.  For example, then Iron metal looses 3 electrons to develop a +3 charge, we call it Iron (III) or Fe+3.\n\nThere are also such things as polyatomic ions, or groups of covalently bondded atoms that have an over all charge on them.  For example, the Ammonium ion is made up of a Nitrogen atom and 4 Hydrogen atoms with an overall charge of +1 (NH4+1).  These polyatomic ions can have some odd names, but they too still follow a partern.\n\nTake the many forms of this type of ion,\nClO-, HYPOchlorITE\nClO2-, chlorITE\nClO3-, chlorATE\nClO4-, PERchlorATE\nThs capitilized letters are the pattern it follows.
139410
ignoring radioactivity(which deals with unstable isotopes) the elements are indestructible and will last forever.\nthe law of conservation of matter says matter can never be created nor destroyed.( we can destroy matter in nuclear bombs but otherwise...).\nAs long as atoms exist, which is forever, the periodic table will tell you what to expect.
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Rarest substance on earth are nuclei of sertain elements that are artificially made by physicists and sre very shortlived and known by just a few nuclei. It can be the element with atomic number 111 through 118. Visit\nhttp://periodic.lanl.gov/default.htm
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Tin is a chemical element in the periodic table that has the symbol Sn (L. Stannum) and atomic number 50. This silvery, malleable POOR METAL that is not easily oxidized in air and resists corrosion, is found in many alloys and is used to coat other metals to prevent corrosion. Tin is obtained chiefly from the mineral cassiterite, where it occurs as an oxide.
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go to www.google.com them write periodic table and than go to images and you'll see
664567
One should not group antimatter particles all into the word element. It is possible to make any of the elements in the form of antimatter, and for any element the antimatter equivalent would be incredibly rare here on earth. Now to say the rarest is very hard because there could be at any given point in time a number of antimatter hydrogen atoms that might seem like a large number, to the human mind, here on earth. Anti hydrogen would be the most abundant anti element, although still inconcievably rare. However, some of the heaviest non-antimatter elements that have been created in the lab probably ocasionally briefly come into existence in nature here on earth. Some of these metals might be rarer than antihydrogen, the most abundent antielement here on earth. \nNote: positrons, anti electrons, are the most abundent easily observable antiparticle, but I have left them out because they are not an element.\n\nNow, as for the universe in general: It is a real curiousity that there does not seem to be an equal amount of antimatter as matter. We humans do not now how to create matter without also creating an equal amount of antimatter. Yet, it seems as though our universe is made up almost entirely of matter... What happened to all of the antimatter during the creation of the Universe??? I don't know, and as far as I am aware of there is not a solid leading theory to explain this enigma, but many ideas have been suggested with associated mathematics. Some of them propose that the antimatter went into another dimension. Others propose that there was a very slight inequality in the quantity of matter and antimatter with the difference being the matter that is currently in existence. Still others contend that the some total of matter and antimater within the Universe are still of equal quantities, but the areas where this antimatter is hiding is too far for light to have reached us from those locations. Although I have a preference between these ideas, I will not say what it is. So, lets just say that that might be a good topic for someone interested in the subject to do some real research.