This set of BCEs/DCIs and ACAs cover content from Unit 1 Topics 1.5 (Atomic Structure and Electron Configuration), Topic 1.6 (Photoelectron Spectroscopy), Topic 1.7 (Periodic Trends), Topic 1.8 (Valence Electrons and Ionic Compounds) and Unit 3 Topic 3.12 (Photoelectric Effect).

Type of Activity	Type of file	Link	Description
BCE20	Google Form	BCE20	This BCE ask emerging questions over waves, wavelength, amplitude and frequency. There is also a short movie that covers the Bohr model and the quantum mechanic model of the atom along with a few questions.
BCE20	Google Sheet	link to a Google Sheet	This Google Sheet contains the Expert's Response to BCE20
DCI20	pdf	Electromagnetic Radiation	This is a pdf activity that covers waves, the relationship between wavelength, frequency and the speed of light, and the relationship between energy (change in energy) and frequency or wavelength of a photon of light.
DCI20 Answers	pdf	Electromagnetic Radiation Answers	The Expert answers to DCI20
ACA22	Google Form	ACA22	This ACA students are asked additional questions about wavelength and to calculate the frequency of light given wavelength and the speed of light.
ACA22	Google Sheet	link to a Google Sheet	This Google Sheet contains the Expert's Response to ACA22

Type of Activity	Type of file	Link	Description
BCE21	Google Form	BCE21	This BCE ask some emerging questions and some advanced questions about a movie of the Bohr model of the atom. The goal is to get the student to seen a hydrogen atom absorbing or releasing a photon of light and the what happens to the electron in the atom.
BCE21	Google Sheet	link to a Google Sheet	This Google Sheet contains the Expert's Response to BCE21
DCI21	pdf	Bohr Model	This is a pdf activity that covers aspects of the Bohr model. Students are expected to use the relationship En = -2.18 x 10-18 Joules to calculate the energy of the electron in a particular level/orbit. While Questions 2, 4, 5 and 6 are not addressed in the AP Chemistry CED, Questions 3 and 7 are important for a conceptual understanding of the model of a hydrogen atom. Question 7 specifically uses Coulomb's law.
DCI21 Answers	pdf	Bohr Model Answers	The Expert answers to DCI21
ACA22	Google Form	ACA22	This ACA students are asked additional questions about wavelength and to calculate the frequency of light given wavelength and the speed of light.
ACA22	Google Sheet	link to a Google Sheet	This Google Sheet contains the Expert's Response to ACA22