Electrons! Created by Educational Technology Network. www.edtechnetwork.com 2009

Definitions Waves Models Configuration Problems 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50

Topic 1 – 10 Points QUESTION: all the forms of electromagnetic radiation form the ________ _________ ANSWER: electromagnetic spectrum

Topic 1 – 20 Points Photoelectric effect QUESTION: ANSWER: _______________ refers to the emission of electrons from a metal when light shines on the metal ANSWER: Photoelectric effect

Topic 1 – 30 Points QUESTION: A state in which an atom has a higher potential energy ANSWER: excited state

Topic 1 – 40 Points ________ occurs when waves overlap QUESTION: ANSWER: Interference

Topic 1 – 50 Points QUESTION: This is a three-dimensional region around the nucleus that indicates the probable location of an electron. ANSWER: Orbital

Topic 2 – 10 Points QUESTION: ANSWER: Wavelength _______________ is the distance between corresponding points on adjacent waves. ANSWER: Wavelength

Topic 2 – 20 Points QUESTION: ___________ is defined as the number of waves that pass a given point in a specific time ANSWER: frequency

Topic 2 – 30 Points What is the speed of light? QUESTION: ANSWER: 3.0 x 108

Topic 2 – 40 Points Higher frequency = ________ wavelength QUESTION: ANSWER: shorter or smaller

Topic 2 – 50 Points Bigger wavelength = _________ energy QUESTION: ANSWER: lower

Topic 3 – 10 Points QUESTION: According to which model, the electron can circle the nucleus only in allowed paths, or orbits. ANSWER: Bohr

Topic 3 – 20 Points QUESTION: When an electron falls to a lower energy level, a ___________ is emitted ANSWER: Photon

Topic 3 – 30 Points QUESTION: The _________ wave equation said that electrons exist in regions called orbitals. ANSWER: Schrodinger

Topic 3 – 40 Points What was wrong with Bohr’s model? QUESTION: ANSWER: electrons couldn’t switch energy levels, and the electrons don’t travel in perfect circular paths

Daily Double Topic 3 – 50 Points QUESTION: Explain the Heisenberg uncertainty principle. ANSWER: states that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle Daily Double

Topic 4 – 10 Points QUESTION: How many arrows does an atom of Silicon have in its orbital notation? ANSWER: 14

Topic 4 – 20 Points QUESTION: What is the electron configuration for Lithium? ANSWER: 1s22s1

Topic 4 – 30 Points What is the electron configuration for Chlorine? QUESTION: What is the electron configuration for Chlorine? ANSWER: 1s22s22p63s23p5

Topic 4 – 40 Points Which energy level is filled first: 4d 3f 5s 4p QUESTION: Which energy level is filled first: 4d 3f 5s 4p ANSWER:

Topic 4 – 50 Points QUESTION: According to the ________ _________, an electron occupies the lowest-energy orbital that can receive it. ANSWER: Aufbau principle

Topic 5 – 10 Points QUESTION: ANSWER: How many unfilled orbitals does florine have? ANSWER: one

Topic 5 – 20 Points QUESTION: What is the highest filled energy level in Tellurium? ANSWER: 4d

Topic 5 – 30 Points How many unfilled orbitals does Iron have? QUESTION: How many unfilled orbitals does Iron have? ANSWER: 4 unfilled

Topic 5 – 40 Points What is the noble gas notation for Phosphorus? QUESTION: What is the noble gas notation for Phosphorus? ANSWER: [Ne] 3s23p3

Topic 5 – 50 Points What is the noble gas notation for Bismuth? QUESTION: What is the noble gas notation for Bismuth? ANSWER: [Xe] 6s24f145d106p3

Final Jeopardy Question: When I put zinc nitrate into a flame, a bright red flame is produced. What is happening to the zinc’s electrons and what does that specific color tell us about the energy, wavelength and frequency of the light wave? Answer: The electrons are jumping energy levels and releasing red light wave photons as they fall back to ground state. Big wavelengths, low frequency, low energy.