The neutron number (symbol N) is the number of neutrons in a nuclide. This diagram shows the half-life (T ½) of various isotopes with Z protons and neutron number N. Neutron number is not written ...
Of elements whose most stable isotopes have been identified with certainty, francium is the most unstable. All elements with atomic number of 106 (seaborgium) or greater have most-stable-known ...
As energy from the sun reaches Earth, some solar radiation is absorbed by the atmosphere, leading to chemical reactions like the formation of ozone and the breakup of gas molecules. A new approach ...
String theory aims to explain all fundamental forces and particles in the universe—essentially, how the world operates on the smallest scales. Though it has not yet been experimentally verified ...
A new chemical analysis challenges the long-held belief that the remarkable fossil preservation in China’s Yixian Formation was caused by cataclysmic volcanic events. While Yixian is often dubbed the ...