Unit 2 lesson 6: electron configuration

​TUESDAY 9/6: UNIT 2 – electron configuration

• MON 9/12 QUIZ: 35 ELEMENTS

• THURS 9/15- LAB: FLAME TEST/ SPECTRAL ID-You must have your lab safety form turned in

• Fri 9/16 & 9/23 are PLD days

• Mon 9/19 - Lab Quiz On Flame Test  Lab And Quiz on electron Configurations

• Thurs 9/22- Unit 2 Test, MOS due​

Announcements/Reminders

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Bellwork:

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Agenda

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ON GC​

• Bellwork

• Video- electron configurations

• PPT-electron configurations

• PRACTICE– page 25-27​

​HW:

​PAGES 25-27 if not finished in class

​Electron configurations are like

​(We will use numbers)

Multiple Choice

Each row on the periodic table represents:

• an energy level

• a sublevel

• an electron

• an orbital

Multiple Choice

There are 4 different types of subshells (sublevels) s,p,d,f

• true
• false

Multiple Choice

What is the maximum number of electrons that an s orbital can have?

• 1 electron

• 2 electrons

• 3 electrons

• 4 electrons

Multiple Choice

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

Multiple Choice

The second shell from the center of an atom can hold how many electrons?

• 2

• 6

• 8

• 18

Multiple Choice

How many electrons can the d sublevel hold?

• 8
• 10
• 2
• 4

Multiple Choice

How many electrons can the p sublevel hold?

• 8
• 6

• 2
• 4

Multiple Choice

What is the maximum number of electrons that an f sublevel can have?

• 11 electrons

• 14 electrons

• 13 electrons

• 12 electrons

Multiple Choice

How many electrons can the third energy level hold?

• 2

• 18

• 8
• 0

Multiple Choice

What electron configuration matches an oxygen atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵

• 1s²2s²2p⁴

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²3p⁶4s²3d¹

Multiple Choice

Identify the Electron Configuration for Aluminum (Al)

• 1s² 2s² 2p⁶ 3s² 3p¹

• 1s² 2s² 2p⁶ 3s² 3p³

• 1s² 2s² 2p⁶ 3s² 4p¹

Multiple Choice

Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?

• Hund’s Rule
• Aufbau Principle
  
• Pauli Exclusion Principle

Multiple Choice

What does Pauli exclusion principle state ?

• states that each electron occupies the lowest energy orbital available
• states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electros have opposite spins
• states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals

Multiple Choice

What does Hund's rule state?

• states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals
• states that each electron occupies the lowest energy orbital available
  
• states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electros have opposite spins

Multiple Choice

Energy levels are denoted by:

• letters

• numbers

• a combination of letters and numbers

• subscripts