Tin is a chemical element with symbol Sn (from Latin: stannum) and atomic number 50. It is a post-transition metal in group 14 of the periodic table. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide, SnO2. Tin shows a chemical similarity to both of its neighbors in group 14, germanium and lead, and has two main oxidation states, +2 and the slightly more stable +4. Tin is the 49th most abundant element and has, with 10 stable isotopes, the largest number of stable isotopes in the periodic table, thanks to its magic number of protons.
Definition of 'quash'. quash. If a court or someone in authority quashes a decision or judgment, they officially reject it. If someone quashes rumours, they say or do something to demonstrate that the rumours are not true. Graham attempted to quash rumours of growing discontent. [VERB noun]
Define fathom: a unit of length equal to six feet (1.83 meters) used especially for measuring the depth of water âsometimesâ¦ â fathom in a sentence a unit of length equal to six feet (1.83 meters) used especially for measuring the depth of water âsometimes used in the singular when qualified â¦