Electron Configuration - Corona-Norco USD District Homepage：电子配置科罗娜啤酒诺科美元区的主页.ppt

Electron Configuration - Corona-Norco USD District Homepage：电子配置科罗娜啤酒诺科美元区的主页.pptWarm Up 9-12-13
1. Argon (Ar) has 18 protons and 22 neutrons. What is Ar’s mass?
2. How many protons, electrons, and neutrons are in Kr?
3. Which part of the atom contain the most mass?
4. Which part of the atom is responsible for the volume?
Homework
Sept 16 - Quiz Chp 3
AgendaTurn in Chp 2 worksheets
Notes Chp 3-3 Notes
Online Homework Chp 3
Chapter 3-3Electron Configuration
(Locating Electrons)
Electron Behavior
Electrons exhibit properties of both particles and waves
Electrons can be considered waves confined to the space around a nucleus
Electrons are located in orbitals, that correspond to specific energy level
ic Spectrum
Light Emission
Electron energy levels are determined through an element’s emission spectrum
When electrons absorb energy, they change energy levels within the atom
Light Emission
However, they are unstable in this excited state
Electrons move to back to a more stable ground state, by emitting energy in the form of light (photon)
http://micro..
Light Emission
The photon (energy packet) that is emitted will have a different wavelength (color) depending on the amount of energy that was released
Examples light spectrum: Hydrogen and Iron
Light Emission
Each element has a different number and arrangement of electrons
Therefore, elements can be identified based on their emission spectrum
This is how we know that the sun posed of hydrogen and helium
Assignments
Chp 3 online homework (only do the questions you know)
Skip mol, atoms, gram calculation questions
Skip s, d, p electron questions
Notes summary
Zangle is updated with your test and online HW scores
Warm Up 9-16-13
When will light (photon) emit from an atom?
Protons, Neutrons, and Electrons for Chlorine-36 and 108Ag
An atom has 19 protons and 14 neutrons, What element is it?
Neutrons and protons have the same _____, protons and electrons are the same______
Homework
Finish the lab conclusion
AgendaQuiz & 3.