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. 

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

Which principle is it violating?

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!

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