Unit 4: Electrons

How many energy levels are on the periodic table?

• 4

• 5

• 6

• 7

What element has the configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁴

• Silicon

• Selenium

• Sulfur

• Arsenic

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An orbital (box) can hold how many electrons

• 1

• 2

• 3

• 6

Which of the following is not a sublevel

• s

• p

• f

• g

What element ends in: 4d⁸

• Pd

• Pt

• Ni

• Ag

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T/F: Electrons fill orbitals one at a time until each has one before they start to double up

• True

• False

How many orbitals (lines/boxes) does the sub level 'p' have?

• 1

• 3

• 5

• 7

The f sub level can hold this many electrons

• 12

• 10

• 14

• 6

Gold's electron configuration ends in ___________

• 6d⁹

• 5d⁹

• 5f⁹

• 6p⁹

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How many electrons in this configuration? 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁵

• 53

• 54

• 35

• 85

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