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.
Best Answer: An Mg2+ ion is a magnesium atom with a 2e positive charge. This means that it has two electrons (negative charge) less than protons (positive charge). Magnesium as the atomic number 12. This means that each magnesium has 12 protons. Because Mg2+ has a net charge of +2e, it has 10 electrons, as explained above. Magnesium atoms may have 12, 13 or 14 neutrons. You cannot guess that, you have to look it up in an isotope chart.