Is sodium monoatomic ? How ? I think only noble gases are monoatomic ?
Yes, sodium is monoatomic because it is unstable in diatomic state.
Note: Every metal is monoatomic in nature.
Being monoatomic, the atomic radius of noble gases are very small compared to covalent radius of other elements.
Being monoatomic, the atomic radii of noble gasses are very small compared to the covalent radii of other elements.
By definition, the total kinetic energy is the sum of translation, rotational and vibrational kinetic energies for monoatomic gases only the translational K.E. is counted. True or False ?