Electron Configurations

What atom matches this electron configuration?
1s²2s²2p⁶3s²

• Neon
• Magnesium
• Aluminum
• Potassium

Tags

NGSS.HS-PS1-1

What is the charge of an atom that has lost one electron?

• -1
• -2
• +1
• +2

Tags

NGSS.HS-PS1-1

What is the electronic configuration of iron?

• 1s²2s²2p⁶3s²3p⁶4s²3d⁶
• 1s²2s²2p⁶3s²3p⁶3d⁸
• 1s²2p⁶3s²3p⁶4s²3d⁶
• 1s²2s²2p⁶3s²3p⁶4s¹3d⁶

Tags

NGSS.HS-PS1-1

Which element is pictured?

• neon
• fluorine
• magnesium
• argon

Tags

NGSS.HS-PS1-1

How many electrons can the d sublevel hold?

• 14
• 10
• 2
• 6

Tags

NGSS.HS-PS1-1

How many electrons can the s sublevel hold?

• 14
• 10
• 2
• 6

Tags

NGSS.HS-PS1-1

How many electrons can the p sublevel hold?

• 14
• 10
• 2
• 6

Tags

NGSS.HS-PS1-1

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

Tags

NGSS.HS-PS1-1

The third energy level can hold at most how many electrons?

• 2

• 8

• 18

• 32

How many electrons at most are in the 4f sublevel?

• 10

• 8

• 18

• 14