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…

What is the formula of the compound formed between aluminium ions and sulfate ions? A. $\ce{AlSO4}$ B. $\ce{Al2(SO4)3}$ C. $\ce{Al(SO4)3}$ D. $\ce{Al3(SO4)2}$

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