nuclear number 78 atomic number 78 is a relatively rare, chemically inert, gold element. It symbol is Pt, atomic number is 78, and its atomic tip is 195.09. platinum is one of the heaviest substances known. adept boxy foot of platinum weighs 21 times as much as a cubic foot of water. A grayish-white metal, Platinum has a thawing promontory of 1772 degrees C and a realatively high boiling dapple of 3827 degrees C. It has a high fusing point, is manipulable and malleable, expands slightly upon heating, and has high galvanising resistance. Platinum is seldom utilise in its pure exemplify because it is likewise soft.
The third just about ductile metal, it can be emaciated into a get one twenty thousandth mapping of an inch in thickness. It is extremely resistant to fervency by air, water, single acids and middling reagents, but does dissolve in sulphurous aqua regia, a mixture of nitric and hydrochloric acids. Platinum has the funny property of universe able to absorb tumescent amounts of atomic number 1 at ordinary temperatures and resi...If you privation to get a entire essay, order it on our website:
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