#FCI #CHEMISTRY OCTET RULE During a chemical reaction the at | Agriculture Exams Library
#FCI #CHEMISTRY
OCTET RULE During a chemical reaction the atoms tend to adjust their electronic arrangement in such a way that they achieve 8 e– in their outermost electron. This is called octet rule.
CHEMICAL BOND- the chemical force which keeps the atoms in any molecule together is called a chemical bond.
IONIC BOND- The columbic force of attraction which holds the appositively charged ions together is called an ionic bond. An ionic bond is formed by the complete transfer of one or more electrons from the atom of a metal to an atom of non- metal.
LATTICE ENTHALPY- The molar enthalpy change accompanying the complete
separation of the constituent particles that compose of the solids (such as ions for ionic solid, molecules for molecular solids) under standard conditions is called lattice enthalpy (AH°). The lattice enthalpy is a positive quantity.
ELECTRO VALENCY: The number of electrons lost or gain by an atom of an element is called as electrovalency.
