Matter is made up of very small parts called atoms. Atoms can combine in different numbers and in different ways to make different molecules. Atoms and molecules make up all of the different ...

The questions in this quiz are suitable for GCSE chemistry students studying early ideas about atoms, the structure of the atom, atomic number and mass number. If you struggled with the quiz ...

Everything in the world is chemistry. All materials are composed of atoms, whose positively charged nuclei are surrounded by ...

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 ...

Scientists at Lawrence Berkeley National Laboratory say they have developed the technology that could finally produce the ...

ACM, the Association for Computing Machinery, named an eight-member team drawn from Australian and American institutions as ...

Although the rule has made its way into chemistry textbooks ... which removes groups of atoms from molecules. This resulted in a molecule that had the telltale ABO double-carbon bond.