Silicon (Si) symbol chemical element of the periodic table, 3D animation on atom design background
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Silicon (Si) symbol chemical element of the periodic table, 3D animation on atom desig…
2022年9月30日
shutterstockMahir KART
Consider the orthosilicate (SiO4)2- anion. What is the central atom? Enter its chemical symbol. How many lone pairs are around the central atom? 0. What is the ideal angle between the silicon-oxygen bonds? 109.5°. Compared to the ideal angle, you would expect the actual angle between the silicon-oxygen bonds to be (choose one)!
Consider the orthosilicate (SiO4)2- anion. What is the central atom? Enter its chemic…
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#Silicon is a #ChemicalElement with the symbol Si and #AtomicNumber 14. It is a hard, brittle #Crystalline solid with a blue-grey metallic luster, and is a tetravalent #Metalloid and #SemiConductor. It is a member of group 14 in the #PeriodicTable: #Carbon is above it; and #Germanium, #Tin, #Lead, and #Flerovium are below it. It is relatively #Unreactive. Because of its high chemical affinity for #Oxygen, it was not until 1823 that #JönsJakobBerzelius was first able to prepare it and characteriz
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