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 ...

The present writer has briefly discussed the history of this law, in NATURE, vol. 1. 1894, p. 149. In two unappreciative lines in a footnote to the “Elements of Chemical Philosophy,” published in 1812 ...

__1803: __English chemist-physicist John Dalton starts using symbols to represent the atoms of different elements. Dalton, considered the father of modern atomic theory, made a logbook entry that day ...

Atomic force microscopy (AFM) is a way to investigate the surface features of some materials. It works by “feeling” or “touching” the surface with an extremely small probe. This provides a ...

Dalton’s Atomic Theory: British physicist, chemist, and meteorologist John Dalton proposed Dalton’s atomic theory in the year 1808. This was the first theory that studied the matter in the form of ...

In what's being hailed as an important first for chemistry, an international team of scientists has developed a new technology that can selectively rearrange atomic bonds within a single molecule. The ...

The achievements of the scientist John Dalton were commemorated on Thursday 7 June at his birthplace in Cumbria. The Royal Society of Chemistry unveiled a plaque in his honour at the cottage where he ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...