Transcript: This is Dr. B. Let's do the Lewis structure for SiH4. On the periodic table, Silicon, group 4, 4 valence electrons; Hydrogen, group 1, 1 valence electron, but we have four of them. So 4 plus 4: 8 total valence electrons. Put the Si in the center, Hydrogens always go on the outside.
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What is AMG mean on the Mercedes? AMG (Aufrecht Melcher GroÃaspach) is an abbreviation which stands for: Hans Werner Aufrecht (A) and Erhard Melcher (M) who were partners, while Aufrecht's birthplace of Groâ¦Ãaspach (G) supplied the third letter in the company name.