Electron Configuration

What electron configuration matches an oxygen (O) atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵

• 1s²2s²2p⁴

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²3p⁶4s²3d¹

The electron configuration of an atom is 1s²2s²2p⁶.  The number of electrons in the atom is 

• 3
• 6
• 8
• 10

Tags

NGSS.HS-PS1-1

Which electron configuration belongs to Chlorine (Cl)?

• 1s² 2s² 2p⁶ 3s² 3p⁵
• 1s² 2s² 2p⁶ 3s² 3p⁶
• 1s² 2s² 2p⁶ 3s² 3p⁷

Tags

NGSS.HS-PS1-1

Identify the Electron Configuration for Aluminum (Al)

• 1s² 2s² 2p⁶ 3s² 3p¹
• 1s² 2s² 2p⁶ 3s² 3p³
• 1s² 2s² 2p⁶ 3s² 4p¹

Tags

NGSS.HS-PS1-1

What atom matches this electron configuration?

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc (Zn)

• Copper (Cu)

• Nickel (Ni)

• Germanium (Ge)

What atom matches this electron configuration?

1s² 2s² 2p⁶ 3s²

• Neon (Ne)

• Magnesium (Mg)

• Aluminum (Al)

• Potassium (K)

How many valence electrons are represented here?

• 7
• 5
• 2
• 8

Tags

NGSS.HS-PS1-1

How many electrons does Si contain? (click to see image)

• 14
• 28
• 2
• 4

Tags

NGSS.HS-PS1-1

Which electron configuration belongs to Copper (Cu)?

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁸
• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁹
• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the electron configuration of Sulfur (S) using noble gas method

• [Ne]3s¹

• [Ne]3s²3p³

• [Ne]3s²3p⁴