Electron Configuration and Valence Electrons

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

• representative elements

• columns 3-8

• rare earth elements

• transition elements

Which of the following is the electron configuration for an alkali earth metal?

• 1s²2s¹

• 1s²2s²2p¹

• 1s²2s²2p⁵

• 1s²2s²2p⁶3s²

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

• 10

• 8

• 18

• 14

The following electron configuration is for which element?

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Cu

• Zn

• Cd

• Ga

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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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How many valence electrons are in this element? AND identify the element.

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²5d¹4f¹⁴5d²

• 11; Hf

• 2; Ba

• 3; La

• 2; Ta

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What atom matches this electron configuration?
1s²2s²2p⁶3s²

• Neon

• Magnesium

• Aluminum

• Potassium

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What do you start electron configuration with?

• 1s²

• 1d¹⁰

• 1f¹⁴

• 1p⁶

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How many total electrons can the f orbitals in a sublevel hold?

• 2

• 14

• 6

• 10

What is this element? 
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶

• Argon

• Krypton

• Selenium

• Bromide

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