This attraction pulls the atoms together and the electrons are shared by both atoms. The atoms bond because there is a strong enough attraction in both directions and room for the electrons in the ...

In the water molecule, the oxygen and hydrogen atoms share electrons in covalent bonds. There are a total of 10 protons and 10 electrons, so the water molecule is neutral. The electron cloud model ...

Changes of state: interactive activity - AQA Learn about changes of state from melting, evaporating and boiling with this interactive activity designed for the GCSE AQA chemistry specification.

Energy is required to break a covalent bond between two atoms ... The opposite is true if we want to make new bonds. Energy is released when new chemical bonds are formed, so bond making is ...

More than 75 years after its initial discovery, scientists have created an organometallic molecule containing the ...

The pioneering nuclear chemist Glenn Seaborg discovered berkelium at Berkeley Lab in 1949. It was one of many achievements ...

Researchers are opening up new horizons in chemistry: They present the world's first triple bond between the atoms boron and carbon. Boron, carbon, nitrogen and oxygen: these four elements can ...