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Draw the lewis structure of the ionic compound formed between phosphorus and potassium. Don’t forget that you must show all your work.

What is the wavelength, in nanometers, of a photon of electromagnetic radiation with 8.25 x 10-19 J of energy?​

What is the energy, in joules, of a photon of electromagnetic radiation with a wavelength of 235.5 nm?​

Describe what happens to the potential energy and stability of an atom as two electrons approach each other, using Coulomb’s law ().

What is the wavelength, in nanometers, of a photon of electromagnetic radiation with 8.25 x 10-19 J of energy?​

Describe what happens to the potential energy and stability of an atom as two electrons approach each other, using Coulomb’s law ().

Describe the double slit experiment.  What does it prove about the nature of electrons?

A section of the periodic table with all identification features removed is shown below. U V W X Y Z Which element has the lowest ionization energy?

What is the frequency, in Hz, of a photon having a wavelength of 620nm?

Showing all your work: a) Draw the Lewis structure of sulfur tetrabromide. b) Label the electron geometry and molecular geometry c) Determine if the molecule is polar or non polar. Explain your choice.