CHEMISTRY November 6, 2014 LAB 06 – Electron Configuration.

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Presentation transcript:

CHEMISTRY November 6, 2014 LAB 06 – Electron Configuration

LAB STARTER You have 5 minutes. You are seated and quiet Do the Lab Starter

ANNOUNCEMENT TAKE YOUR IN-CLASS PACKET HOME TO COMPLETE IF YOU NOT COMPLETED YET.

AIM WHICH COLOR REQUIRES AN ELECTRON IN ITS EXCITED ENERGY STATE TO OCCUPY A HIGHER ENERGY LEVEL?

PROCEDURES USING BEANS AND THE ELECTRON SHELL TEMPLATE, CREATE THE SHELL ELECTRON CONFIGURATION FOR DIFFERENT ELEMENTS IN THE GROUND STATE USING THE SAME BEANS AND ELECTRONS SHELL TEMPLATE, CREATE THE SHELL ELECTRON CONFIGURATION FOR DIFFERENT ELEMENTS IN THE EXCITED STATE

Pre-lab Question 1 What is the maximum numbers of electrons in Energy Level 1 (shell)?

Pre-Lab Question 2 If the electron configuration is 2-8-4, How many energy levels does the element have? What is the total number of electrons? What is the maximum number of electrons in the outside shell?

CRITICAL THINKING A mystery element has an electron configuration of in its ground state. This should take about 5 minutes. – Identify the number of protons – What is the name for the mystery element? – Explain how you came up with the answer. You must use the word electron in your answer. The answer must be at least 2-3 complete sentences.

GROUND STATE VS EXCITED STATE Using the periodic table, identify if the element is in its ground state or in an excited state by circling the right choice. Nitrogen (2-5): ground state/excited state Iron ( ): ground state/excited state Potassium ( ): ground state/excited state Lithium (1-2): ground state/excited state Silver ( ): ground state/excited state Chromium ( ): ground state/excited state

TO GROUND STATE Using the periodic table, write the ground state for the given excited electron configuration. This should take 5 minutes Aluminum (2-7-4): Arsenic ( ): Chlorine (2-6-9): Copper ( ) Sulfur (2-6-8): Iodine ( ):

POST LAB QUESTION 1 The electron configuration for the element fluorine is both 2-7 and 1-8. Explain how the movement of electrons makes the existence of both electron configurations possible.

POST LAB QUESTION 2 Based on your lab readings and our previous class discussion, which color requires the electrons (in its excited energy state) to occupy a higher energy level. Provide evidence to support your claim