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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NGSS.HS-PS1-1

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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Which area on the periodic table represents the electrons in the "d" sublevel (d orbitals)?

• representative elements

• columns 3-8

• rare earth elements

• transition elements

Which periodic table family below has their last, most energetic electron in their electron configuration in the s-block?

• Alkaline Earth

• Halogens

• Noble Gases

• Transition Metals

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NGSS.HS-PS1-2

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

Each orbital can hold how many electrons?

• 5

• 4

• 8

• 2

How many half-filled orbitals would silicon contain?

• 0
• 2
• 1
• 3

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NGSS.HS-PS1-1