Tom Skerritt : Tobias. Tom Skerritt, Best Actor EmmyÂ® winner for his series âPicket Fences,â is one of the most versatile and acclaimed American actors of movies and TV. At UCLA Film School, he acted in theatre and began writing for screen as a means to understand the full embrace of his primary interest, directing film.
#Na_3N#. Sodium is an element in group 1 of the periodic table. As such, it will form an electron by losing a single electron to form a #1+# ion: #Na^+#. Nitrogen is an element in group 5 of the periodic table. When it forms the nitride ion, it gains three electrons to form a #3-# ion: #N^(3-)#. In ionic compounds, the charges of constituent ions must balance. This can be achieved by having three sodium ions per nitride ion. Therefore, the formula of sodium nitride is #Na_3N#.
Sodium fluoride /ËsoÊdiÉm ËflÊÉraÉªd/ is an inorganic chemical compound with the formula NaF.A colorless solid, it is a source of the fluoride ion in diverse applications. Sodium fluoride is less expensive and less hygroscopic than the related salt potassium fluoride.n medical imaging, fluorine-18 -labelled sodium fluoride (USP, sodium fluoride F18) is one of the oldest tracers used in positron emission tomography (PET), having been in use since the 1960s.