tungsten is ocassionally classified as a metal or nonmetal or metalloid because it is a transition metal.
tungsten is ocassionally classified as a metal or nonmetal or metalloid because it is a transition metal.
is tungsten ocassionally classified as a metal or nonmetal or metalloid?
transition metal
as a halogen, astatine tends to be classified as a nonmetal. it has some marked metallic properties and is sometimes instead classified as either a metalloid or (less often) as a metal. immediately following its production in 1940, early investigators considered it a metal. in 1949 it was called the most noble (difficult to reduce) nonmetal as well as being a relatively noble (difficult to oxidize) metal. in 1950 astatine was described as a halogen and (therefore) a reactive nonmetal. in 2013, on the basis of relativistic modelling, astatine was predicted to be a monatomic metal, with a face-centred cubic crystalline structure.
metalloid
jorge josé emiliano dos santos









































jorge josé emiliano dos santos (19 march 1954 - 21 january 1995) also known by his nickname, margarida (meaning "daisy", in english) was a brazilian football referee, known for his flamboyant style. he is recognized as an iconic figure in brazilian football and was one of the first openly gay referees in brazil. 









































section::::early life.
jorge josé emiliano dos santos