Editing 2723: Outdated Periodic Table
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==Explanation== | ==Explanation== | ||
+ | {{incomplete|Created by BERYLLIUM-BASED LIFE - Please change this comment when editing this page. Do NOT delete this tag too soon.}} | ||
+ | Some {{w|Chemical elements|elements}} do not occur naturally on earth and have to be {{w|Synthetic element|synthesized}}. Those elements are generally excluded from {{w|periodic table|the periodic table}} until they have been synthesized (and are no longer theoretical). At the beginning of the universe, the temperature, and thus the kinetic energy, was too high for matter to form big nuclei. It took some time (how long is not accurately defined) before parts of the universe had cooled down sufficiently for further elements to form naturally. In the first minutes after the Big Bang, only hydrogen, deuterium, helium and lithium nuclei were present. If a scientific textbook had somehow been written at that time (which is highly unlikely, as paper and ink consist of heavier elements such as carbon), it would be able to describe only a very few elements based on observations. | ||
− | + | Because scientific textbooks do not update themselves after being published,{{citation needed}} one can determine the age of a scientific textbook by checking how many elements are present in the textbook's periodic table. | |
− | + | Interestingly, despite helium being one of the first elements to exist, it did not appear in the earliest period tables. Because the noble gasses do not react chemically, they were unknown to human scientists until the late 19th century. | |
− | The title text refers to how yet-undiscovered elements are given a {{w| | + | The title text refers to how yet-undiscovered elements are given a {{w|Systematic element name|temporary name according to how many protons they have}}, consisting of Greek and Latin roots. Here the numbers are very low ("pentium" being based on "pent" which means "five", and thus would refer to {{w|Boron}}) because only four elements had been discovered at the time of publication (this may also be a reference to the four {{w|classical elements}}). {{w|Pentium}} is also the name of a series of microprocessors launched by Intel in the 1990s. The term "unnilium" is a description of the digits of ten, i.e. 1 0, using the numerical roots established by convention. In reality, had neon once been a hypothetical element, it would more likely have been called something along the lines of "decium". Of course, how the early life created particle accelerators is unknown. |
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− | + | The title text also suggests that there were scientists half an hour after the Big Bang who managed to synthesize these heavier elements. However, said scientists probably didn't use the same naming system as us.{{citation needed}} | |
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+ | ==Transcript== | ||
+ | {{incomplete transcript|Do NOT delete this tag too soon.}} | ||
+ | :Figure 6.14 | ||
+ | :The periodic table of the elements | ||
+ | :H Hydrogen | ||
+ | :He Helium | ||
+ | :Li Lithium | ||
+ | :Be Beryllium | ||
:[Caption below the panel]: | :[Caption below the panel]: | ||
:You can spot an outdated science textbook by checking the bottom of the periodic table for missing elements. For example, mine was published half an hour after the Big Bang. | :You can spot an outdated science textbook by checking the bottom of the periodic table for missing elements. For example, mine was published half an hour after the Big Bang. | ||
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[[Category:Chemistry]] | [[Category:Chemistry]] | ||
[[Category:Cosmology]] | [[Category:Cosmology]] | ||
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