The ions formed have a full outer electron shell, so are very stable. See the study guide on groups in the periodic table for more information.

Although metal ions are central to all of biochemistry, a group of elements clustered in the early part of the periodic table—carbon, nitrogen, oxygen and phosphorus—are highly represented in ...

The attraction by chlorine is stronger than the attraction by sodium. An electron is transferred from sodium to chlorine. Sodium becomes a positive ion and chlorine becomes a negative ion. The ...

From electric vehicles to satellites and spacecrafts, lithium-ion batteries have revolutionised our daily lives. Euronews Tech Talks tries to understand how. View on euronews ...

The Cr3+ ion is about 26% bigger than the Al3+ ion it replaces ... and the gap between the two elements leaves a space for their relatively unsung cousin, neptunium - element number 93 in the periodic ...

It is also the fifth most abundant dissolved ion in seawater. Calcium was named after the Latin term calx meaning lime, and is a reactive silvery metallic element found in Group 2 of the periodic ...