This week, the grade 9 students learned about the structure of atoms and atomic theory. They studied different subatomic particles, including protons and neutrons, and looked at the factors that define the size and shape of an atom’s orbitals.

This week, the grade 9 students learned about the structure of atoms and atomic theory. They studied different subatomic particles, including protons and neutrons, and looked at the factors that define the size and shape of an atom’s orbitals.