Practice worksheet for determining atomic structure using the periodic table.
A worksheet titled "Electrons and Electrons Practice Worksheet" with a table for elements, including columns for Name of Element, Element Symbol, Mass Number, Atomic Number, Protons, Neutrons, and Electrons. The table includes elements like Boron, Carbon, and Oxygen, with some data filled in. A periodic table snippet shows Oxygen with atomic number 8 and mass number 16.000. A PDF icon is visible in the top right corner.