Which is the element with atomic no. 77? Write about it.
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Iridium
Ir and atomic number 77
. A very hard, brittle, silvery-white
transition metal of the platinum group, iridium is generally credited with being the second densest element
It is also the most corrosion -resistant metal, even at temperatures as high as 2000 °C.
Ir and atomic number 77
. A very hard, brittle, silvery-white
transition metal of the platinum group, iridium is generally credited with being the second densest element
It is also the most corrosion -resistant metal, even at temperatures as high as 2000 °C.
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