The electronic configuration of noble gases is stable according to ________scheme.
Bohr-Bury
Huckel
Le- chattier
Avogadro
For which element the electronegativity (pauling scale) is 0.89?
Radium
Calcium.
Strontium.
Barium.
For which element the second ionization enthalpy(kJ mol-1) is 979?
The electrons present in the outermost shell of an atom are called ______ electrons.
Valence
Inner
Penultimate
Antipenultimate
During the formation of an ionic bond, the electronegative atom gains one or more electrons and changes into a
Anion
Cation
Neutral atom
Noble gas
_________ is some sort of interatomic attraction which holds the two atoms together.
Chemical bond
Molecularity
Order
Atomicity
What is the electronegativity (pauling scale) of Sr?
1.31.
1.57.
1.00.
0.95.
The theory of chemical bonding reveals that the formation of a chemical bond involves a decrease in the _________ of the system.
Potential energy
Kinetic energy
Velocity
Stability
When the electronegativity difference between two atoms in large, they can attain octets by the complete transfer of one or more electrons from one atom to the other and can be linked together by an attractive force known as _______ bond.
Ionic
Covalent
Co-ordinate
Metallic
For which element the second ionization enthalpy(kJ mol-1) is 965?
Strontium