Rather than having its positive charge spread uniformly throughout an atom, the positive particles of an atom are found in a small, highly concentrated area at the center of an atom.

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.