General chemistry

General chemistry

Contributors in General chemistry

General chemistry

A chemical element with the symbol Au (from Latin: aurum "gold") and an atomic number of 79. Gold is a dense, soft, shiny, malleable and ductile metal. Pure gold has a bright yellow color and luster ...

mercury

Chemistry; General chemistry

A chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver or hydrargyrum (from "hydr-" water and "argyros" silver). A heavy, silvery d-block element, mercury is the ...

thallium

Chemistry; General chemistry

A chemical element with the symbol Tl and atomic number 81. This soft gray poor metal resembles tin but discolors when exposed to air. The two chemists William Crookes and Claude-Auguste Lamy ...

lead

Chemistry; General chemistry

A main-group element in the carbon group with the symbol Pb (from Latin: plumbum) and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals.

bismuth

Chemistry; General chemistry

A chemical element with symbol Bi and atomic number 83. Bismuth, a trivalent poor metal.

polonium

Chemistry; General chemistry

A chemical element with the symbol Po and atomic number 84, discovered in 1898 by Marie Skłodowska-Curie and Pierre Curie. A rare and highly radioactive element, polonium is chemically similar to ...