Cations are ions that are positively charged. Anions are ions that are negatively charged. Ions are charged atoms or molecules. If a balanced atom loses one or more electrons, it will become a ...

For elements in groups 6 and 7, the charge on the ion relates to the group number of the element in the periodic table. Figure caption, Oxygen is in group 6 of the periodic table.

Learn about and revise non-metals and ionic compounds with this BBC Bitesize GCSE Combined Science (OCR 21C) study guide.

They then learn to predict the charge an atom of an element will have when it forms an ion based on the element’s location on ... Chemistry 403: Trends in the Periodic Table . Season 1 Episode ...

In some stable chemical compounds, one negatively charged ion balances out one positively charged ion. (An example of this is table salt, made up of positively charged sodium and negatively ...

Calcium becomes a +2 ion and each chlorine becomes a -1 ion. The +2 calcium ion and the two -1 chloride ions attract each other and form an ionic bond and the compound calcium chloride. Lesson 4.4: ...

For the first time, chemists have synthesised an interhalogen compound exhibiting a unique central fluorine atom coordinated by four BrF 5 groups. 1 The one-of-a-kind interhalogen ion in [NMe 4][Br 4 ...