five basic elements

Borax is slightly hydrolyzed in solution. As boric acid is a weak acid, the solution is alkaline in nature...

Ammonia molecule has a strong tendency to donate its lone pair of electrons of nitrogen to other molecules. Thus, it acts like a strong Lewis base. In aqueous solutions, NH 3 ionizes in accordance with the reaction...

. C, Si Non metal Ge Metalloids Sn, Pb Metals 5. Property of catenation One of the most remarkable properties of carbon is to form bonds with itself thus, forming chains of carbon atoms. This property of forming bonds with atoms of the same element is called catenation. Carbon s..

Set: A well-defined collection of distinct objects is called a set. Notation of Sets: Capital letters are usually used to denote or represent a set. Representation of Sets: There are two methods of representing a set. (i) Roster Method (ii) Set builder form. Finite an..

A basic salt may also be formed by the partial replacement of the hydroxyl groups of a diacidic or triacidic base, by an acid radical. Basic salts are stronger in their basic nature and show a pH greater than ..

. For example, in alcohols like methanol and ethanol, -OH is the functional group and in acids like ethanoic acid, -COOH is the functional group. The -NH 2 functional group possesses basic character. The functional group present in the following molecules is encircled. Free valency or val..

Symbol N Atomic Number 7 Electronic Configuration 2,5 Formula N 2 Relative Atomic Mass 14 Relative Molecular Mass 28 Vapor Density 14 Valency 1, 2, 3, 4, 5 ..

Some Basic Features of Chlorine - Symbol Cl Formula cl2 Atomic number 17 Electronic configuration 2, 8, 7 Valency -1 Relative Atomic Mass 35.5 Relative Molecular Mass 71 Vapor Density 35.5 Isotopes 35 37 Cl , Cl17 ..

Types of Elements - On the basis of electronic configuration, the elements of the periodic table are classified into: (1) Noble gases, (2) Normal elements, (3) Transition elements, (4) Inner-transition elements, (5) Alkali metals and (6) H..

Symbols of Elements - Even before knowing what elements were, man started extracting them from their ores. A few metals like gold, silver, iron, copper, lead, tin and mercury were used even in the 1 s t century A.D. A mention of them is made in the 'Charaka Samhita' - a medical ..