Students use the terms isotope, atomic number, mass number, and atomic mass. Atomic Theory: Structure of the Atom: Students use the terms isotope, atomic number, mass number, and atomic mass to ...

Catalysts play an indispensable role in modern manufacturing. More than 80% of all manufactured products, from ...

The Royal Swedish Academy of Sciences has decided to award the Nobel Prize in Chemistry for 2009 jointly to Venkatraman Ramakrishnan, MRC Laboratory of Molecular Biology, Cambridge, United Kingdom; ...

Part of Physics (Single Science) Unit 1: Atomic and nuclear physics Most of the mass and all of the positive charge of an atom is in the nucleus. Most of an atom is empty space, (a vacuum). In 1897, ...

Marielle Aulikki Wälti, Francesco Ravotti, Hiromi Arai, Charles G. Glabe, Joseph S. Wall, Anja Böckmann, Peter Güntert, Beat H. Meier, Roland Riek Proceedings of the National Academy of Sciences of ...

(Nanowerk Spotlight) The petrochemical industry relies on separating chemicals that differ by just fractions of a nanometer in size. Methanol must be purified from similarly-sized molecules in the ...

Why do some elements decay in minutes, while others last billions of years? Certain "magic numbers" of nuclear particles may make all the difference.

STOCKHOLM — The Nobel Prize in chemistry was awarded Wednesday to David Baker, Demis Hassabis and John Jumper for their breakthrough work predicting and designing the structure of proteins, the ...