Electron Configuration

What atom matches this electron configuration?

1s²2s²2p⁶3s²3p⁶4s²

• Calcium

• Sodium

• Argon

• Magnesium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What electron configuration matches an oxygen atom?

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

Tags

NGSS.HS-PS1-1

How many valence electrons are represented here?

• 7
• 5
• 2
• 8

Tags

NGSS.HS-PS1-1

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

• 1 electron

• 2 electrons

• 3 electrons

• 4 electrons

How many electrons can the d sublevel(orbital) hold?

• 8

• 10

• 2

• 4

How many valence electrons does Chlorine have?

• 5
• 2
• 7
• 5

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• true

• false

How many electron can be found in a p orbital?

• 2
• 3
• 4
• 6

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

Which element is pictured?

• neon
• fluorine
• magnesium
• argon

Tags

NGSS.HS-PS1-1