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TFSD Unwrapped Standard 2
11 – 12 Chemistry
Power Standard (s) Reference: 2
State Standard: None
District Standard: 2
TFSD Power Standard: Students will identify the structure of the atom and the electron
Concepts: Need to know about (Nouns)
 Democritus, Dalton, Thomson, Rutherford, Millikan
 Gold foil experiment
 Cathode ray
 Atom
 Proton, neutron, electron
 Atomic number
 Mass number
 Isotope
 Ions
 Electron configuration
 Orbitals
 Quantum theory
 Sublevels
 Electromagnetic spectrum
 Waves
 Frequency
 Ground and excited states
Skills: Be able to do (Verb Phrases)
 Explain how the scientists discovered the parts of the atom
 Diagram the electron configuration
 Identify the parts of the atom and where they are located
 Describe how waves and particles relate to electrons
 Differentiate between atoms, ions, and isotopes
Identifying Big Ideas from Unwrapped Standards:
1. Different scientists contributed to the understanding of the atom
2. Atoms are composed of protons and neutrons in the nucleus and electrons which travel
around the nucleus
3. Atomic number, mass number, and charge are based on the number of protons, neutrons, or
electrons within an atom
4. The electromagnetic spectrum and waves help us to understand how electrons are arranged
around the nucleus
5. Electron configuration is a method to identify where electrons are located according to their
level, sublevel, and orbital
Essential Questions from Big Ideas to Guide Instruction and Assessment:
1. How was the understanding of the atom developed?
2. What are the parts of the atom and where are they located?
3. How does the number of protons, neutrons, and electrons affect the atomic number, mass
number and charge of an atom?
4. How does the electromagnetic spectrum relate to where the electrons are located around the
Possible Topics or Context: (what you will use to teach the concepts and skills-particular
unit, lessons or activities)
 History timeline project
 Flame test lab
 Target activity
 Electron configuration practice sheets