Electron Configuration Answers – Flashcards
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How many orbitals are there in the first shell?
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There is 1 orbital in the first shell
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How many orbitals are in the S shell?
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1 orbital
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How many orbitals are in the P shell?
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3 orbitals
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How many orbitals are in the D shell?
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5 orbitals
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How many electrons can an orbital hold?
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2 electrons
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If there are serveral orbitals available which have the same energy, How will the electrons fill the orbitals?
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The electrons will enter the orbitals singularly
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What is the order the orbitals fill in? list the first 11
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1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p
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What is the electron configuration of Lithium? (atomic number 3)
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1s² 2s¹
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What is the electron configuration of a Lithium ion? (Li¹⁺)
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1s²
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What is the electron configuration of Calcium? (atomic number 20)
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1s² 2s² 2p⁶ 3s² 3p⁶4s²
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What is the electron configuration of a Calcium ion? (Ca²⁺)
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1s² 2s² 2p⁶ 3s² 3p⁶
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What is the electron configuration of Oxygen? (atomic number 8)
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1s² 2s² 2p⁴
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What is the electron configuration of an Oxygen ion? (O²⁺
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1s² 2s² 2p²
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What is the electron configuration of Chromium? (atomic number 24)
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1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵
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What is the electron configuration of a Chromium ion? (Cr¹⁺)
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1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ (Transition metal ions lose electrons from their 4s subshell before their 3d subshell)
