Electron Configuration and Light

Which of the following is NOT an electron configuration? 

• 2.8.1

• 1s2 2s2 2p6 3s1

• ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑

  1s 2s 2p 3s

Tags

NGSS.HS-PS1-1

The p-subshell can accommodate a maximum of __________ electrons.  

• 2

• 3

• 6

• 10

Choose the correct electron configuration for Krypton (Kr).

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s⁸ 3d⁸

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁸ 4p3

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁸ 4p⁶

Tags

NGSS.HS-PS1-1

Choose the correct electron configuration for Beryllium (Be).

• 1s¹

• 1s² 2s²

• 1s² 2s² 2p¹

Tags

NGSS.HS-PS1-1

What is incorrect about this orbital diagram?

• Both arrows in the 2p box should be pointing up

• There is nothing incorrect with this diagram

• In the there should only be 1 orbital in the first 2p box and one in the 2nd 2p box

• All the arrows should be pointing up.

The word Aufbau means building up in German.

The Aufbau Principle describes that_________

•  electrons with the same spin cannot occupy the same orbital. 

• Since electrons repel each other, electrons will occupy single orbitals within  and energy level before doubling up. 

•  electrons fill lower energy levels first before occupying higher energy levels.

• electrons are always at the lowest energy level if not excited. 

Which orbital diagram violates Hund's rule?

• A

• B

• C

• D

Tags

NGSS.HS-PS1-1

Which rule is violated in this orbital diagram?

• Aufbau principle

• Hund's rule

• Pauli exclusion principle

What is the lowest possible energy level that an electron can occupy?

• Fundamental state

• Ground State

• Excited State

• Outermost state

1. Which of the following electronic transitions in the oxygen atom will result in light emission?

• 1. ni = 1 ⟶ nf = 2

• 1. ni = 3 ⟶ nf = 2

• 1. ni = 1 ⟶ nf = 3

• 1. ni = 2 ⟶ nf = 3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS4-3