Chemistry worksheet for calculating atomic mass, atomic number, protons, neutrons, and electrons for various elements.

A chemistry worksheet titled "Element of Elements" that includes a table with elements, their symbols, atomic numbers, atomic masses, and subatomic particles (protons, neutrons, electrons) to be calculated. The worksheet provides an example for lithium and instructs students to solve for the missing values using basic math and chemistry knowledge. It includes a note stating that a periodic table is not needed and rounding instructions are provided.