Ions

A chloride ion differs from a chlorine atom because a chloride ion has: one less electron, one less neutron, one more electron, one more neutron? :oops:

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Does gaining a neutron or loosing a neutron effect charge?

Chloride ion differs from a chlorine atom because all atoms try to gain the electronic configuration of the noble gases;thus,the chlorine atom gains one electron in order to have the electronic configuration of the Argon. Consequently, the chlorine ion will have 1 more electron.

From nomenclature alone the -ide will give it a way.

Unless you don't follow IUPAC nomenclature guidelines.
But that only serves to confuse when you get to the lanthanides.

Which is why there is a proposal to call them lanthanoids (and actinoids) but since they are never mentions as compounds, the terms lanthanides and actinides really cause no problems; moreover, standard usage suggests that an -oid is similar to but different from the source word; eg planetoids are like planets but do not belong to the class of planets, but lanthanum is indeed a lanthanide; i think it was emerson who said that consistency was the hobgoblin of small minds. :roll:

wheras IUPAC is powered by the small minds of hobgoblins..... lol

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