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General chemistry
Industry: Chemistry
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General chemistry
meitnerium
Chemistry; General chemistry
A chemical element with the symbol Mt and atomic number 109. It is placed as the heaviest member of group 9 (or VIII) in the periodic table but a sufficiently stable isotope is not known at this time ...
darmstadtium
Chemistry; General chemistry
A chemical element with the symbol Ds and atomic number 110. It is placed as the heaviest member of group 10 but a sufficiently stable isotope is not known which would allow chemical experiments to ...
roentgenium
Chemistry; General chemistry
A synthetic radioactive chemical element with the symbol Rg and atomic number 111. It is placed as the heaviest member of the group 11 (IB) elements, although a sufficiently stable isotope has not ...
copernicium
Chemistry; General chemistry
A chemical element with symbol Cn and atomic number 112. It is an extremely radioactive synthetic element.
ununtrium
Chemistry; General chemistry
It is placed as the heaviest member of the group 13 (IIIA) elements although a sufficiently stable isotope is not known at this time that would allow chemical experiments to confirm its position. It ...
antimony
Chemistry; General chemistry
A toxic chemical element with the symbol Sb and an atomic number of 51. A lustrous grey metalloid, it is found in nature mainly as the sulfide mineral stibnite.
tellurium
Chemistry; General chemistry
A chemical element that has the symbol Te and atomic number 52. A brittle, mildly toxic, silver-white metalloid which looks similar to tin, tellurium is chemically related to selenium and sulfur.
