A synonym is a word or phrase that means exactly or nearly the same as another word or phrase in the same language. Words that are synonyms are said to be synonymous, and the state of being a synonym is called synonymy. The word comes from Ancient Greek syn (ÏÏÎ½) (with) and onoma (á½Î½Î¿Î¼Î±) (name).
One magnesium atom and two chlorine atoms react to form one unit of magnesium chloride. This is because the magnesium atom has an oxidation number of -2 and each chlorine atom â¦ has an oxidation number of +1. 3 people found this useful.Answered.In Elements and Compounds.he formula unit for magnesium hydroxide is Mg(OH)2. This shows that in each formula unit there are two oxygen atoms, two hydrogen atoms, and one magnesium atom for a total of â¦ five atoms altogether. 5 people found this useful.
A lithium ion has the same electronic structure as a helium atom (He). Sodium, Na. Sodium is also in Group 1. It has one electron in its outer shell. When this electron is lost, a sodium ion Na + is formed. A sodium ion has the same electronic structure as a neon atom (Ne). Magnesium, Mg. Magnesium is in Group 2. It has two electrons in its outer shell. When these electrons are lost, a magnesium ion Mg 2+ is formed. A magnesium ion has the same electronic structure as a neon atom (Ne). Calcium, Ca