Electron Configurations and Orbital Diagrams

What atom matches this electron configuration?

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• zinc

• copper

• nickel

• germanium

Tags

NGSS.HS-PS1-1

What electron configuration matches an oxygen atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵
• 1s²2s²2p⁴
• 1s²2s²2p⁶
• 1s²2s²2p⁶3s²3p⁶4s²3d¹

Tags

NGSS.HS-PS1-1

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

Tags

NGSS.MS-PS1-1

The electron configuration of an atom is 1s²2s²2p⁶.  How many electrons does this atom have?

• 3
• 6
• 8
• 10

Which of these is the electron configuration for Cl^-?

• 1s² 2s² 2p⁶ 3s² 3p⁵

• 1s² 2s² 2p⁶ 3s² 3p⁶

• 1s² 2s² 2p⁶ 3s² 3p⁷

• 1s² 2s² 2p⁶ 3s² 3p⁴

Tags

NGSS.HS-PS1-1

This orbital diagram represents:  

• C
• B
• N
• O

Tags

NGSS.HS-PS1-1

This orbital diagram represents:  

• C
• B
• N
• O

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is incorrect about this orbital diagram?

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

• There is nothing incorrect with this diagram.

• There should only be 1 arrow in the first 2p box and one in the 2nd 2p box.

• All the arrows should be pointing up.

Tags

NGSS.HS-PS1-1

How many electrons can the d sublevel hold?

• 14
• 10
• 2
• 6

Tags

NGSS.HS-PS1-1

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

• Hund’s rule

• aufbau principle

• Pauli Exclusion principle

• quantum rule

Tags

NGSS.HS-PS1-1