Cations, anions and ion charges

Explain that metals lose electrons to form cations and non-metals gain electrons to form anions, and predict the charge of a monatomic ion from the electron configuration of its atom and the noble gas configuration it reaches.

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What is the charge of the monatomic ion usually formed by the element with the following electron configuration? $\ce{[Ne] 3s^2 3p^4}$ A. 2+ B. 2− C. 4+ D. 6+

Which row shows the correct formula of aluminium sulfide and the electron configuration of each species in it? A. $\ce{Al3S2}$ ; Al species [Ne]; S species [Ar] B. $\ce{Al2S3}$ ; Al species [Ne] $3s^2\,3p^1$ ; S species [Ne] $3s^2\,3p^4$ C. $\ce{Al2S3}$ ; Al…

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