Electrocution hazards can occur even when electrical equipment is properly grounded.

Which fifth period element best matches the ionization energy shown in the previous question? 

How much energy is released from a photon with a wavelength of 247 nm? 

Determine if the following sets of quantum numbers are allowed or not allowed.  (2, 1, 0, 

What element does the electron configuration of [Ar]4s13d5 represent? 

A laser pulse with a frequency of 2.95 x 1011 Hz contains 612 kJ of energy. How many photons are in the laser pulse? 

Use this graph for the following question

Below is a model of an atom of a theoretical element, X, and a two choices for a model of the X+ ion. Which model represents the cation and why?  Because:  C. Cations are smaller because they lose electrons from the outer shell D. Cations are larger because they add protons E. Cations are larger because they add electrons

Determine if the following molecules are polar or non-polar?     is a [1] molecule      is a [2] molecule    is a [3] molecule

Determine if the following bonds are polar or non-polar?  Cl-Cl [1] N-O [2] C-H [3]