Silicon differ from silica by a group of
Correct answer: C. 02
- A. -OH
- B. ОСНз
- C. 02
- D. CH3
Explanation
The key difference between silicon and silica lies not in the addition of groups like -OH, CH3, or OCH3, but in the nature of the chemical bonds they form. Therefore, the correct answer is: O2Silicon is a group 14 element with four valence electrons. In silica (SiO2), silicon forms covalent bonds with four oxygen atoms, sharing its electrons to achieve a stable octet configuration. This network of covalent bonds gives silica its characteristic properties like hardness and high melting point.On the other hand, silicon, the elemental form, exists as a metalloid with various allotropic forms. It can form covalent bonds with other elements like halogens and carbon, but not directly with oxygen alone.Therefore, the presence of oxygen and the type of bonds formed with it (covalent in silica and not directly present in elemental silicon) is the fundamental difference between these two entities
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About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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