Electron Configuration

What is the electron configuration of sodium?

• 2-8

• 2-8-2

• 2-8-1

• 11

Tags

NGSS.HS-PS1-1

What is the electron configuration of calcium?

• 2-8-8-2

• 2-8-10

• 20

• 2-18-2

Tags

NGSS.HS-PS1-1

This is a correct dot diagram for oxygen (O)

• true
• false

Tags

NGSS.HS-PS1-1

This is a correct dot diagram for fluorine (F)

• true
• false

Tags

NGSS.HS-PS1-1

This is the correct dot diagram for nitrogen (N)

• true
• false

Tags

NGSS.MS-PS1-1

This is a correct dot diagram for nitrogen (N)

• true
• false

Tags

NGSS.MS-PS1-1

This could be the dot diagram of

• Mg
• Cl
• C
• O

Tags

NGSS.HS-PS1-1

This could be the dot diagram of

• O
• B
• Li
• Ne

Tags

NGSS.HS-PS1-1

Which of the following shows an excited state electron configuration?

• 2-7-1

• 2-4

• 2-8-4

• 2-8-1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the electron configuration of sodium ion (Na⁺¹)?

• 2-8

• 2-8-2

• 2-8-1

• 11

Tags

NGSS.HS-PS1-1