atomic number 78 atomic number 78 is a relatively rare, chemically inert, gold element. It symbol is Pt, atomic number is 78, and its atomic weight 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 melting promontory of 1772 degrees C and a realatively high boiling point of 3827 degrees C. It has a high fusing point, is pliable and malleable, expands slightly upon heating, and has high electrical resistance. Platinum is seldom utilise in its pure stage because it is likewise soft.
The third around ductile metal, it can be emaciated into a get out one twenty thousandth mapping of an inch in thickness. It is extremely resistant to attack by air, water, single acids and modal(a) reagents, but does dissolve in sulphurous aqua regia, a mixture of nitric and hydrochloric acids. Platinum has the funny property of creation able to absorb large amounts of atomic number 1 at ordinary temperatures and resi...If you want to get a all-embracing essay, order it on our website:
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