WebHelium, the lightest of the noble gases, had actually been detected and helium is the only element in the periodic table that was discovered by an astronomer. Helium is the … WebHydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure.The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. Its monatomic form (H) is the most abundant chemical substance in the Universe, …
Which element is lightest in periodic table? – Wise-Answer
WebMar 12, 2012 · Best Answer Copy Helium its the lightest element with the atomic #:2 Wiki User ∙ 2012-03-12 21:28:42 This answer is: Study guides Science 14 cards Who is known … WebLithium is a soft, silvery-white, metal that heads group 1, the alkali metals group, of the periodic table of the elements. It reacts vigorously with water. Storing it is a problem. It … rite aid pharmacy grand island new york
Helium (He) - Physical & Chemical Properties, Uses, Isotopes
WebMar 4, 2024 · Although hydrogen is the lightweight of the chemical elements, it packs a real punch when it comes to its role in life and its potential as a solution to some of the world’s … WebApr 10, 2024 · Hydrogen, helium, lithium and beryllium are the lightest four elements, with one, two, three and four protons, respectively. Hydrogen has no neutrons, helium has two, lithium has four and beryllium has five, and the masses of the elements increase in that … Argon, abbreviated Ar, is element number 18 on the periodic table, making it the … In nature, the vast majority of hydrogen atoms have no neutrons; these atoms … smith and nephew 71364028