Periodic Table and Valency of Elements
Periodic Table and Valency of Elements - a) Group IA, IIA and IIIA consists of metals of normal elements. They have 1, 2, or 3 valence electrons which they can easily donate to acquire the configuration of nearest noble gas. They become positively charged i.e., cations..
Periodic Table and Valency of Elements - a) Group IA, IIA and IIIA consists of metals of normal elements. They have 1, 2, or 3 valence electrons which they can easily donate to acquire the configuration of nearest noble gas. They become positively charged i.e., cations..Periodic Table and Valency of Elements a) Group IA, IIA and IIIA consists of metals of normal elements. They have 1, 2, or 3 valence electrons which they can easily donate to acquire the configuration of nearest noble gas. They become positively charged i.e., cation..
a) Group IA, IIA and IIIA consists of metals of normal elements. They have 1, 2, or 3 valence electrons which they can easily donate to acquire the configuration of nearest noble gas. They become positively charged i.e., cation..Chemical Properties
Differences in chemical properties Metals have 1, 2 or 3 electrons in the outermost shell Non-metals have 4 to 8 electrons in the outermost shell Loses valence electrons and forms cations Gain or share valence electrons and form anions Electropositive Electronegative ..
Chemical Equation
Chemical Equation - A chemical equation is a "balanced account of a chemical transaction." In any chemical transaction or reaction, the number of atoms of all the participating elements will remain proportionately constant before and after..
Chemical Equation - A chemical equation is a "balanced account of a chemical transaction." In any chemical transaction or reaction, the number of atoms of all the participating elements will remain proportionately constant before and after..Periodic Classification of Elements Summary
Summary - The grouping of elements with similar properties together and the separation of elements with dissimilar properties is known as classification of elements. The table, which classifies elements on the basis of their properties, is called th..
Representative or Main Group Elements
These consist of all 's' and 'p' block elements excluding the noble gases (group 18 elements). The chemical properties of the representative elements are determined by the number of valence electrons in their atoms. The number of valence electrons belonging t..
Balancing of Chemical Equations
If the number of atoms of an element on both sides of a chemical reaction is equal, then the equation is said to be balanced . Example: Potassium nitrate decomposes on heating to form Potassium nitrite and Oxygen. Now count the number of atoms of each element on..
If the number of atoms of an element on both sides of a chemical reaction is equal, then the equation is said to be balanced . Example: Potassium nitrate decomposes on heating to form Potassium nitrite and Oxygen. Now count the number of atoms of each element on..Some Important Chemical Compounds Summary
Summary - Common name Chemical name Formula Washing soda Sodium carbonate decahydrate Na 2 CO 3 .10H 2 O Baking soda Sodium bi carbonate NaHCO 3 Quick lime Calcium oxide CaO Bleaching powder Calcium oxychloride CaOCl 2 Slaked lime Calcium hydroxide Ca(OH) 2 Plaster of Paris Calcium sulpha..
The p-Block Elements Summary
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 18 Elements (Noble Gases) - Introduction
The elements helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn) are grouped together in Group 18 of the Periodic Table. All of these are gaseous under ordinary conditions of temperature and pressure. The last number of the group, radon is obtained ..
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