Platinum is a very pretty white silvery metal. Its has many isotopes that range from 190Pt to 198Pt. Platinum's atomic mass average is 195.08 amus. Platinum's place on the periodic table is period number 6, group number 10. Platinum has a fairly large Atomic number it is 78. Platinum's elemental forms are nuggets and grains. Unfortunately platinum has never been found pure, it is unknown in nature. Platinum is usually alloyed with other metals like iron, copper, gold etc. …showed first 75 words of 324 total…

…showed last 75 words of 324 total…in it. Chromite is not harmful to humans. Chromite is also not harmful to the environment. I have come in contact with platinum. It is found in spark plugs for cars because my dad is a mechanic. Also I have come in contact with it in my mom's jewelry. Platinum in some compounds can stop the growth of cancerous cell growth; also because it's biologically able it is an important part in many medical items.