Electron Configurations Review

What is the electron configuration of oxygen?

• 1s2 2s2 2p2

• 1s2 2s2 2p6

• 1s2 2s2 2p3

• 1s2 2s2 2p4

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What is the electron configuration of nitrogen?

• 1s2 2s2 2p4

• 1s2 2s2 2p5

• 1s2 2s2 2p2

• 1s2 2s2 2p3

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What is the electron configuration of helium?

• 1s2

• 2p6

• 1s1

• 2s2

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The 4 orbitals are

• s, p, d, f

• a, b, c, d

• 2, 4, 6, 8

Each row on the periodic table represents:

• an energy level

• a sublevel

• an electron

• an orbital

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Electron configuration of carbon (C)

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Electron configuration of nitrogen (N)

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What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

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What atom matches this electron configuration?
1s²2s²2p⁶3s²

• Neon
• Magnesium
• Aluminum
• Potassium

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Identify the Electron Configuration for Aluminum (Al)

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

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