Electron Configurations

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

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What electron configuration matches an oxygen atom?

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

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

• 14

• 10

• 2

• 6

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Choose the correct shortcut configuration for iodine.

• [Ar]4s²4d¹⁰4p⁵

• [Kr]5s²4d¹⁰5p⁵

• [Xe]5s²5d¹⁰5p⁵

• none of the above

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Each row on the periodic table represents:

• an energy level

• a sublevel

• an electron

• an orbital

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How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

Each orbital can hold how many electrons?

• 5

• 4

• 8

• 2

In an electron configuration, what follows 4s?

• 4p

• 3d

• 4s

• 2f

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What is the noble gas configuration for beryllium?

• [He]1s²
• [He]2s²
• [Li]2s¹
• [Li]2s²

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What is the abbreviated electron configuration for barium?

• [Xe] 6s²
• [Rn] 6s²
• [Ar] 4s² 3d¹⁰ 4p⁵
• [He] 2s² 3p¹

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