Periodic Table / Electron Configuration Practice

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 hold?

• 8
• 10
• 2
• 4

What atom matches this electron configuration?
[Xe] 6s² 4f¹⁴ 5d⁹

• Mercury
• Gold
• Platinum
• Thallium

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What noble gas should be used to write the shorthand configuration for Te?

• Ar
• Kr
• Xe
• Sb

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How many valence electrons does Tin (Sn) have?

• 8

• 7

• 5

• 4

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How many valence electrons does Lithium (Li) have?

• 8

• 1

• 5

• 2

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Which of these elements has the greatest average atomic mass?

• B

• C

• N

• Al

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Which of these elements has an atomic number of 14?

• N

• Al

• Si

• P

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Which of the following elements belongs to the family indicated?

• Nitrogen belongs to the halogen family.

• Helium belongs to the noble gas family.

• Calcium belongs to the alkali family.

• Sodium belongs to the alkaline earth family.

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