Mercury (element)
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Mercury is a chemical element; it has symbol Hg and atomic number 80. It is commonly known as quicksilver. A heavy, silvery d-block element, mercury is the only metallic element that is known to be li
Pouring liquid mercury bionerd
A round pound coin (density ~7.6 g/cm3) floats on mercury due to the buoyancy force upon it and appears to float higher because of the strong surface tension of the mercury.
Native mercury with cinnabar, Socrates mine, Sonoma County, California. Cinnabar sometimes alters to native mercury in the oxidized zone of mercury deposits.
Medical mercury thermometer.
Thallium
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Thallium is a chemical element; it has symbol Tl and atomic number 81. It is a silvery-white post-transition metal that is not found free in nature. When isolated, thallium resembles tin, but discolor
Mercury (element)
…Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium…
Thallium pieces in ampoule
Crystals of hutchinsonite ((Tl,Pb)2As5S9)
A corroded thallium rod