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how to derive a formula from the name of an ionic compound. The anion is named by taking the elemental name removing the ending and adding -ide. An ionic compound is named first by its cation and then by its anion.
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Na is Group 1 on the Periodic Table. A balanced formula has a neutral electrical charge or net charge of zero. Write a formula for the ionic compound that forms between each pair of elements.
Formula of the compound DE 2.
When naming ionic compounds that are made of two polyatomic ions we simply name the cation positively charged ion first and the. This formula indicates that this compound is made up of twice as many sodium ions as sulfide ions. Aluminum and oxygen e. For example K 1 is called the potassium ion just as K is called the potassium atom.
