jöns jacob berzelius is credited with deriving the electronegativity values of the periodic table.
who is credited with deriving the electronegativity values of the periodic table?
jöns jacob berzelius
Na
Na
jones, writing on the role of classification in science, observed that "[classes] are usually defined by more than two attributes". masterton and slowinski used three criteria to describe the six elements commonly recognised as metalloids: metalloids have ionization energies around 200 kcal/mol (837 kj/mol) and electronegativity values close to 2.0. they also said that metalloids are typically semiconductors, though antimony and arsenic (semimetals from a physics perspective) have electrical conductivities approaching those of metals. selenium and polonium are suspected as not in this scheme, while astatine's status is uncertain.





























section::::periodic table territory.





























section::::periodic table territory.:location.
metalloid