identify the element that can form a cation easily
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Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form anions (e.g. oxygen, carbon, sulfur).
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Q. identify the element that can form a cation easily.
Ans: The alkali metals (the IA elements) lose a single electron to form a cation with a 1+ charge. Sodium, magnesium, and aluminum will all form cations in ionic compounds.
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