Whether you commit to the full weekend or just one day, either way, you do not want to miss out on the epic glory of this stellar line-up. Check out our coverage of Rock the Lake 2016, to see what those of you have tickets are in for.
Part 3. Survey of Period 1: hydrogen H to helium He. Period 1, the shortest period of the periodic table, only consists of two elements, hydrogen and helium. Although the properties of helium match those of the other Noble Gases, hydrogen does not really fit into any group. A brief summary of their properties is given below.
Hydrogen has three naturally occurring isotopes: H (protium), H (deuterium), and H (tritium). Other highly unstable nuclei (H to H) have been synthesized in the laboratory, but do not occur in nature. The most stable radioisotope of hydrogen is tritium, with a half-life of 12.32 years. All heavier isotopes are synthetic and have a half-life less than a zeptosecond (10sec). Of these, H is the most stable, and the least stable isotope is H .