From Silicon Valley To The Rust Belt Techs Surprising Bet On Trump

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硅（silicon），元素周期表第三周期第4族非金属元素，元素符号si，原子序数14，相对原子质量28. 086。 单质有晶态和无定形两种，晶态硅为蓝灰色，相对密度 … The symbol for … Silicon, in comparison with neighbouring elements in the periodic table, is unreactive. · silicon, a nonmetallic chemical element in the carbon family that makes up 27. 7 percent of earth’s crust; It is the second most … Sources, facts, uses, scarcity (sri), podcasts, alchemical symbols, … [a] silicon is the eighth most common element in the universe by mass, but very rarely occurs in its pure form in the earths crust. It has blue-grey metallic lustre. Element silicon (si), group 14, atomic number 14, p-block, mass 28. 085.