basic elements of thinking

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..

Basic oxides are the oxides of metals. If soluble in water they react with water to produce hydroxides (alkalies) e.g., ..

Symbol C Atomic number 6 Mass number 12 Isotopes 12 6 C, 13 6 C, 14 6 C 1. Carbon is the first member of the group IVA. 2. Electronic configuration of this group shows that the members have four electrons in their valence shell. 3. Other members of this group ar..

The oxides of elements in a period become progressively more acidic as one goes from left to right in a period of the periodic table. For example, in third period, the behavior of oxides changes as follows:..

It is quite evident that carbon displays a great propensity in forming a large variety of carbon and hydrogen compounds. But carbon can also form bonds with other elements in a hydrocarbon chain, when one or more hydrogen is replaced by an element like oxygen, nitrogen, sulphur..

Summary - Groups 13 to 18 of the Periodic table of elements constitute the p-block. An overview of these elements is presented here. In group 13, the characteristic group oxidation state of + 3 is known but the + 1 state gets progressively stabilized on going down the group. It ..

All living organisms are basically composed of atoms of some chemical elements, particularly carbon, hydrogen, oxygen and nitroge..

These include the non-living, physico - chemical factors such as air, water, soil and the basic elements and compounds of the environmen..

Although organic compounds are basically made up of carbon, hydrogen, oxygen and a few more elements, their number is far greater than the inorganic compounds which don't form bond..

Minerals - Minerals are inorganic nutrients. They include both metallic and non-metallic elements, which are taken by the body in the form of salts. There are 24 elements that are used in our body. They have various functions such as formation of tissues such as the bone, conduc..