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Silicon DOES form double bonds. In fact, something like 70% of the Earth's crust is made of minerals containing double-bonded silicon... feldspar is the most abundant mineral in the Earth's crust, and it is mainly made of silicates. Silicates are silicon-oxygen compounds. Most commonly, silicon double bonded to two oxygens with another two single bonded oxygens (to make SiO4(2-)), but SiO2, silicon double bonded to 2 oxygens, is also fairly common.
The reason why there are fewer double bonded compounds with bigger elements (ie, further down the table) is because double bonds are shorter than single bonds, forcing the atoms' nucleii closer together. In the case of bigger atoms, the large nucleii make this difficult.
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Why can only certain elements form double bonds?
Only certain elements have electrons capable of forming double bonds in their outer electronshell. Also, size plays a major role in the possibility of forming double bonds. If the pi orbitals of the two atoms can overlap then they will be able to make a strong double bond. If the atom is too big then the pi orbital won't be able to overlap with its neighboring atom; preventing it from forming a double bond. Only C,N,O,P,S are able to form double bonds.
What is Formed when two atoms bond covalently?
i am doing the same worksheet right now.... Molecule
What type of bond is formed between iodine and carbon?
Iodine and Carbon form a covalent bond. Moreover, this bond is nonpolar. Cheers, Caroline
What nuclei fuse to form oxygen?
Oxygen is produced through repeated hydrogen fusion in stars. One such process would start with the hydrogen atoms fusing to form helium. And then the helium would fuse to form beryllium. That in turn would fuse to create oxygen.
How do atoms of different elements combine?
there are various bonds formed to form compounds 1 ionic bonds- bond formed from electrostatic attraction eg NaCl 2 covalent bond -two elements share electrons eg O2, Cl2 3 dalton bond or co ordinate covalent bond - dative bond is a covalent bond where both electrons come from the same atom. NH3 -BF3
