Students also look in more detail at the water molecule to help explain the state changes of water.

Researchers at Ruhr University Bochum, Germany, have shed light on the structure of supercritical water. In this state, which ...

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 ...

The dot and cross diagram shows that a water molecule is made up of one oxygen atom joined to two hydrogen atoms, so the formula of water is H 2 O. A nitrogen molecule is made up of two nitrogen ...