Platinum Pt (Element 78) of Periodic Table
78 Pt (Platinum) Pure Platinum is a malleable, ductile, lustrous, silvery-white metal. It has the 3rd highest density, […]
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78 Pt (Platinum) Pure Platinum is a malleable, ductile, lustrous, silvery-white metal. It has the 3rd highest density, […]
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79 Au (Gold) Of all the elements, Apparence of pure gold  (24 carat) is the most beautiful. It
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80 Hg (Mercury) It is a heavy, silvery-white metal, and sometimes called it quicksilver. Mercury is the only
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81 Tl (Thallium) Appearance:Â Silvery white Mass number:Â 204 Standard Atomic weight:Â 204.38 g/mol Atomic number (Z):Â 81
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82 Pb (Lead) Appearance:Â Metallic gray Standard Atomic weight: Â 207.2 g/mol Mass number:Â 207 Atomic number (Z):Â 82
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83 Bi (Bismuth) Appearance:Â lustrous brownish silver Mass number:Â 209 Standard atomic weight:Â 208.9804 g/mol Atomic number (Z):Â
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84 Po (Polonium) Appearance: Silvery Allotropes: α-Po, β-Po Mass number: 209 Atomic weight: 208.9824 g/mol Atomic number (Z):Â
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85 At (Astatine) Appearance:Â Unknown, (Probably metallic) Mass number:Â 210 Atomic weight:Â 209.9871 g/mol Atomic number (Z):Â 85
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86 Rn (Radon) Appearance:Â Colorless gas, Occasionally glows green or red in discharge tubes Mass number:Â 222 Atomic
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87 Fr (Francium) Appearance:Â An intensely radioactive metal. Mass number:Â 223 Atomic weight:Â 223.0197 g/mol Atomic number (Z):Â
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88 Ra (Radium) Appearance:Â Soft, shiny, Silvery white metallic Mass number:Â 226 Atomic weight:Â 226.0254 g/mol Atomic number(Z):Â
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89 Ac (Actinium) Appearance:Â Soft, Silvery-white, glows in the dark with a pale blue light because intense radioactivity
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