â George Mandler has described the origins of cognitive psychology in, Ulric Neisser is credited with formally having coined the term cognitive(2002). psychology (in terms of the current understanding of cognitive psychology) in his book Cognitive Psychology, published in 1967.
The melting point of fluorine is -219 Â°C (-363 Â°F). The boiling point of fluorine is -188 Â°C (-307 Â°F).
The melting point of the element, silicon, is about:  Melting Point: 1687 K (1414Â°C or 2577Â°F)  Boiling Point: 3538 K (3265Â°C or 5909Â°F)  Resource: http://education.jla â¦ b.org/itselemental/ele014.html  You can find the freezing point of the element there as well.