Electron Configuration & Lewis Dot Structures

What atom matches this electron configuration?

1s² 2s² 2p⁶ 3s²

• Neon

• Magnesium

• Aluminum

• Potassium

Tags

NGSS.HS-PS1-1

Which is the electron configuration for an oxygen atom?

• 1s²2s²2p⁶3s²3p⁶4s²

• 1s²2s²2p⁴

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²3p⁶

Tags

NGSS.HS-PS1-1

How many valence electrons are represented here?

• 7
• 5
• 2
• 8

Tags

NGSS.HS-PS1-1

How many electrons can the d sublevel hold?

• 8
• 10
• 2
• 4

What is this element?

1s²2s²2p⁶3s²3p⁶

4s²3d¹⁰4p⁶

• Argon

• Krypton

• Selenium

• Bromide

Tags

NGSS.HS-PS1-1

What is the shorthand electron configuration for Sulfur atom?

• [Ar] 3p⁴

• [He] 3s²3p⁴

• [Ne] 3s²3p⁴

• [Na] 3s²3p³

Tags

NGSS.HS-PS1-1

What noble gas should be used to write the shorthand configuration for Te?

• Ar

• Kr

• Xe

• Sb

Tags

NGSS.HS-PS1-1

This is a correct dot diagram for neon (Ne)

• true
• false

Tags

NGSS.HS-PS1-1

This could be the dot diagram of

• Mg
• Cl
• C
• O

Tags

NGSS.HS-PS1-1

?

• Helium
• Oxygen
• Sodium
• Phosphorous

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2