Identify the elements that have the following electron configurations: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶ *

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asked Sep 3, 2021 111k views

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Identify the elements that have the following electron configurations: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶ *

Chemistry
high-school

Serious asked

by Serious

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1 Answer

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That would be Selenium (Se)

Hooman Askari answered Sep 8, 2021

by Hooman Askari

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Which ion with a +1 charge has the electron configuration 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶? Which ion with a –2 charge has this configuration? a) Na⁺ and O²⁻ b) K⁺ and Cl²⁻ c) Ca²⁺ and S²⁻ d) Mg²⁺ and O²⁻

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Which ion with a 1 charge has the electron configuration 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶? Which ion with a –2 charge has this same configuration (which ion is isoelectronic with this)? a) Z²⁺, E²⁻ b) E²⁺, T³⁻

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