Since it was first synthesized in a post-WW2 American lab in 1949, berkelium has been a rebel of the periodic table, defying ...

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. One calcium ...

Ionic compounds have high melting and boiling points, so they are in the solid state at room temperature. See the study guide on the three states of matter to see how bonding and structure are ...

neutrons, electrons, and energy levels in atoms and their location in the periodic table. Students will also explore covalent and ionic bonding.

Covalent compounds do not conduct electricity. Substances that consist of covalent molecules are usually gases or liquids at room temperature. Ionic bonds are formed between a metal and non-metal ...

Scientists at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have made a groundbreaking ...

In a chemical bond, the more electronegative atom gains extra electrons ... I realized that the root cause was that Pauling treated the molecule's ionic stabilization as an additive effect. If we ...