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Chemistry formula for class 11 chapter- Chemical Bonding

Chemistry Formulas

Class 11 chapter- Chemical Bonding 

  • An atom (or) group of atoms having independent existence in nature is defined as molecule.
  • Force of attraction that holds two atoms (or) oppositely charged ions in molecule is chemical bond.
  • An atom must have eight electrons is its outermost energy level for its stability is called as octet rule.
  • The number of electrons an atom loses (or) gains in an ionic bond formation is called electro valency
  • According to Fajan’s Rules

ionic bond

  • LiCl is more covalent in nature and so dissolved in non-polar solvents like alcohol (or) ether.
  • Ions which have 18 electrons [ns2np6nd10] in their outermost main energy level are stable and it is called as pseudo inert gas configuration (or) nickel group configuration.
  • The energy liberated when an ionic crystal is formed from an assembly of isolated gaseous ions is called lattice energy.
  • Lattice energy 

lattice energy

  • The no. of electrons an atom of the element losses (or) gains is known as electrovalency of that element.
  • Favourable conditions for cation formation.
  1. High E.N & E.A
  2. Small atomic size
  3. Low charge on ion
  • lande equation

(Born – Lande equation)

Coordination number of Na+ and Cl in NaCl crystal is (6 : 6)

Coordination number of Cs+ and Cl in NaCl crystal is (8 : 8)

  • The total amount of energy change in a reaction remains the same whether the reaction take place in one (or) several stages is known as Hess law of constant heat summation.

Chemistry formula sheet for chapter-Chemical Bonding  is prepared by expert of Physics Wallah and consist of all-important formula use in Chemical Bonding chapter. Do follow NCERT text book and solve questions with the help of Physics Wallah NCERT solutions for class 11 chemistryWe also have Chemistry Doubts section where the most common doubts are explained by our expert faculty.

 

Download free pdf sheet which consist of formulas and important points of Chemical Bonding  from the link given below . 

Chemistry formula for class 11 chapter- Chemical Bonding

Chemistry formula for class 11 chapter- Chemical Bonding

Chemistry formula for class 11 chapter- Chemical Bonding

Chemistry formula for class 11 chapter- Chemical Bonding

Chemistry formula for class 11 chapter- Chemical Bonding

Chemistry formula for class 11 chapter- Chemical Bonding

Chemistry formula for class 11 chapter- Chemical Bonding

Chemistry formula for class 11 chapter- Chemical Bonding

Chemistry formula for class 11 chapter- Chemical Bonding

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