SALT ANALYSIS
Objective :: Concept of ions and formula designing by criss –cross method IONS :: Ions are the atoms or a group of atoms formed either by lose of gain of electron(s). TYPES OF IONS :: Cations( + vely charged ions )[More proton than electrons] Anions (-vely charged ions ) [less proton than electrons] Polyatomic ions and Monoatomic ions Monoatomic ions are formed from single atom ( Na + , Cl - ) while polyatomic ions are formed from group of atoms (NH 4 + , SO 4 2- ) ATOMICITY . The no. of atoms present in one molecule of the substance is called its atomicity. Eg Atomicity of sulphur is 8 phosphorous is 4. Valency : The combining capacity of an element is said to be its valency Element/ionic species Symbol/Formula Atomicity Charge Ferous/Iron(II) Fe 2+ ---------- 2 Feric...