General chemistry

General chemistry

Contributors in General 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.