The radial distribution function (electron density plot) for the 3s atomic orbital is given by the plot.

Which

of the following molecules has a dipole moment?

Which of the following bond has a stronger bond?

A shorter bond length means a stronger bond. 

Which of the following has a greater bond energy?

a larger difference of the electronegativity means a greater bond energy. 

A metal emits light at 1.8 nm.  What is the energy in Joules?

Speed of light is 3.00 x 10⁸ m s^-1.  Planks constant is 6.626 x 10^-34 J s.

Give your answer to 3 significant figures. Do not enter units!

The following is an incorrect diagram of ground state of O. 

Which principle is it violating?

Which of the following partial orbital diagrams obey Hund's rule?