Q. Melting point of Tungsten filament is
Solution:
Tungsten, or wolfram, is a chemical element with symbol W and atomic number 74.
It is well known that elements with a higher atomic mass then to have higher melting points. For Tungsten there is the added indication that some of its valence electrons (the 5d electrons) are making covalent bonds between neighboring atoms in the bcc crystal structure. So melting temperature will be high.
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