Properties of their compounds by periodic occurrence and properties of chlorides. Oxides of the elements in Period 2 and Period 3, as follows : 1. Because in the same period of metal (left), semi-metallic and non-metallic (right), each element has a valence electrons are not equal. Thus, the compound of the elements in the same period and, therefore, different compounds have different properties are mainly two. Metal, which is the right reaction with boron compounds in several species. Therefore, the oxidation many values. The metal, which is on the left. When reacting to a kind of non-metal compounds often have the same type. Therefore, the oxidation is only one of three. Chlorides and metal oxide compounds are ionic compounds except BeCl2 valence. It has a high melting point and boiling point The melting and boiling to dissolve Ionic bonding. The strong bonds The chlorides and oxides of non-metals. The valence compounds It has a low melting point and boiling point The melting and boiling destroys the bond between molecules. This is the van der Waals type forces London (molecular polarity) or the van der Waals-type attraction between positive and negative terminal of the molecule (a polar molecule) due to the van der Waals force that. Therefore, non-ferrous metals, soft, melting point, boiling point, low molecular weight molecules, except as P2O5, P2S5, PCl5 a relatively high melting point. For semi-metallic compound of the elements B and Si are relatively high boiling point, melting point, some B2O3, B2S3 Some are very high melting point, boiling point, including SiO2 because it is a lattice latticework. However, some species have a low melting point BCl3, SiCl4 4. compounds of trace metals to normal status as a solid, non-conductive, but when molten conductive. Because the ionic compound. The compounds of metallic elements are mainly gaseous or liquid state. Because the valence compounds 5. Solution of metal oxides Most of the properties are based (basic oxide) and oxides of non-metals are known to possess acid 6. Compounds of elements in Period 2 and Period 3, some insoluble include BeO, Al2O3, SiO2, BeS, CS2, P2S5, NCl3 and CCl4 7. SiO2 insoluble but have acidic because SiO2 solubility in alkaline solution. not (react with bases) as NaOH solution * substance that reacts with alkaline solution is acidic. And compounds that react with the acid solution is based 8. BeO and Al2O3 insoluble, but have to be both acids and bases, because BeO and Al2O3 dissolve the substance acid such as sulfuric acid, hydrochloric acid (HCl) and alkaline solutions such as Sodium Hydroxide (NaOH) (. reacts with the acid and alkaline solutions) based show that the properties of BeO acidic acids that are known to possess bass BeO 9. Chlorides of metals with a solid state. A high melting point, boiling point, because the ionic compound. Most of the metal chlorides. Most of the state is a gas or liquid with low melting point, boiling point. The chloride of metalloid (BCl3 and SiCl4) is a liquid. A low melting point, boiling point because of non-ferrous chloride and a semi-metal valence compounds 10. Chlorides of metals have properties neutral or acid (chloride of Group IA and IIA neutral except BeCl2 the valence acidic compounds. And chloride of Metals Group IIIA acidic) and the properties of non-ferrous chloride, pH 11. Trends in acidity and the base of the oxides in the periodic table is the pH increases from left to right within the same period. And acidity decreases from top to bottom within the same category. The bass is a decrease from left to right within the same period, up from top to bottom within the same category (likely the acidity of oxides. As the trend of the metal The outlook is based on the tendency of the metal oxide) The table shows the properties of chlorides of elements of class 2 and class 3 table shows the properties of oxides of elements of class 2 and class 3.
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