Physical Science



Platinum

Platinum is well known today as a precious metal, but its value is a rather recent facet of history.More difficult to purify than gold and silver, it was more of a curiosity until modern times. Platinum jewelry is popular and…
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What are Ions

Take a brief look around you. Everything you see is made from atoms, those incredibly, intangibly tiny things, the building blocks of stuff. If you can see it, it’s made from atoms. So what are atoms made of? Scientists only…
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What are Transition Metals

Transition metals are those elements in the periodic table with incompletely filled d shells with electrons. Transition metals start in the left with the scandium group which has the 4s2-3d1 electronic configuration, and ends in the right with the zinc…
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