Define radius ratio. What is the value of radius ratio for octahedral geometry ?

Define Poisson ratio.

Define radius of gyration. What is the purpose of defining it ?

Define Poisson's ratio.

Which of the following does not show octahedral geometry ?

For a value of radius ratio between 0.732-1.0, what is the co-ordination number and geometry of crystal ?

The range of radius ratio (cationic to anionic) for an octahedral arrangement of ions in an ionic solid is

Which is true ? If radius ratio r^(+)//r^(-)

Define atomic radius of an atom.

For an ionic crystal of the formula AX and cooradition number 6 , the value of radius ratio will be

The radius ratio of KF is 0.98. The structure of KF is of the type