Chemistry – Nov 7, 2016 P3 Challenge- Hand in your element poster on the front table. Obtain the Build an Atom Worksheet Check out a laptop and power cord!!! Access the phet Build an Atom app. Objective – More Practice with Subatomic Particles, including ions now. Assignment: Complete the Build an Atom Worksheet if you don’t finish in class. Exit slip – Return your laptop and put into the correct slot with its cord plugged in correctly. Anyone’s laptop I have to correct will not get the exit pt.