Bellringer :
description
Transcript of Bellringer :
Bellringer:Draw the orbital diagram for:
Oxygen
Aluminum
3 Rules
• Aufbau• Pauli Exclusion• Hund’s
ObjectiveSWBAT write the electron configuration
of elements on the periodic table in longhand and shorthand notation.
Orbital 1: Holds 2 electrons
Orbital 2: Holds 8 electrons
Has 2 sublevels
Each additional orbital has another set of sub-orbitals
Sub
ClarificationQuantum number (n)
Number of arrows!
To find the # of boxes for each sublevel, divide the # of e- by2
Aufbau Diagram for Fluorine
Longhand (Standard) Notation of Fluorine
Main Energy
Level
Numbers
1, 2, 2Sublevels
Number of electrons in the sub level 2,2,5
1s2 2s2 2p5
Aufbau Diagram for Helium
Longhand notation
Helium•1s2
Aufbau Diagram for Boron
Longhand Notation
Write the Longhand
Shorthand (Noble Gas) Notation!
• Almost the same as longhand notation EXCEPT:• Use the last noble gas that is located in the periodic table right before the element.
• Write the symbol of the noble gas in brackets.
• Write the remaining configuration after the brackets.
• Ex: Fluorine: [He] 2s2 2p5
Blocks in the Periodic Table NOBLE GASSES!
Example: Oxygen
Longhand: 1s22s22p4
Shorthand: [He]2s22p4
Guided Practice: Aluminum
Longhand: 1s22s22p63s23p1Shorthand: [Ne]3s23p1
Practice: Silicon
Longhand: 1s22s22p63s23p2Shorthand: [Ne]3s23p2
Practice: Sulfur
Longhand: 1s22s22p63s23p4Shorthand: [Ne]3s23p4
Homework
• Complete the worksheet!• Due Tuesday!