Download Atoms and Atomic Structure Learning Targets

Learning Targets – Atomic Structure
(TEK 8.5A) Describe the structure of atoms, including the masses, electrical charges, and
locations of protons and neutrons in the nucleus and electrons in the electron cloud.
Define and explain what an atom is.
Identify the 3 sub-atomic particles that make up atoms.
Define and explain what the atomic mass unit of an atom is.
Identify the mass of each sub-atomic particle.
Identify the electric charge of each sub-atomic particle.
Identify the location of each sub-atomic particle in the atom.
Describe the nucleus of an atom and what makes it up.
Identify how to determine the mass of an atom.
Explain what the electron cloud of an atom is and what makes it up.
Explain what the energy levels (orbitals/shells) are within the electron cloud and how many electrons can fit on
each level.
Identify the charge of the nucleus, the charge of the electron cloud and the overall charge of an atom and explain
why.
Explain what A=P=E M-A=N represents and how to identify the # of each sub-atomic particle in an atom.
Illustrate and label an Atomic Model of a lithium atom.
Learning Targets – Protons and Valence Electrons
(TEK 8.5B) Identify that protons determine an element’s identity and valence electron
determine its chemical properties including reactivity.
Identify what determines an atoms identity.
Explain how to determine what element an atom represents.
Explain what valence electrons are and how to identify them on an atomic model.
Identify what determines an atoms chemical properties including reactivity and explain why.
Vocabulary
Atoms, Sub-Atomic Particles, Protons, Neutrons, Electrons, Nucleus, Electron Cloud,
Energy Levels/Orbitals/Electron Shells, Electric Charge, Positive Charge, Negative Charge, Neutral, Mass, Atomic
Mass Unit, Atomic Model, Bohr Model, Valence Electrons, Chemical Properties, Reactivity