Exploring Orbital Diagrams and Electron Configurations

This video tutorial by Mrs. Z covers electron configurations, focusing on valence and core electrons. It explains how to write both complete and abbreviated electron configurations using noble gases. The tutorial also highlights patterns in electron configurations across the periodic table and introduces orbital diagrams, including rules for electron spin and filling order.

What are valence electrons?

• Electrons with the lowest energy

• Electrons that do not participate in bonding

• Electrons in the outermost energy level

• Electrons in the innermost shell

Which noble gas has the same core electron configuration as sulfur?

• Helium

• Neon

• Argon

• Krypton

What is the abbreviated electron configuration for potassium?

• [Xe] 6s1

• [Kr] 5s1

• [Ar] 4s1

• [Ne] 3s2 3p6 4s1

How many valence electrons do elements in group 6A have?

• 4

• 5

• 7

• 6

What is the electron configuration pattern for elements in the same column?

• They have the same number of valence electrons

• They have the same number of core electrons

• They have the same atomic number

• They have the same number of protons

What property of electrons makes them act like little magnets?

• Charge

• Mass

• Spin

• Velocity

How many electrons can each orbital hold?

• 4

• 3

• 2

• 1

What is the correct order for filling orbitals in an atom?

• Based on atomic number

• Random order

• Lowest energy level first

• Highest energy level first

How many electrons does carbon have in its 2p subshell?

• 4

• 3

• 2

• 1

What is the electron configuration for nitrogen?

• 1s2 2s2 2p6

• 1s2 2s2 2p5

• 1s2 2s2 2p4

• 1s2 2s2 2p3