Whether itâs âchin up lassâ or âIâm proud of youâ, discover the family classic that says it best. Explore our recipes here.hether itâs âchin up lassâ or âIâm proud of youâ, discover the family classic that says it best. Explore our recipes here.
Hydrogen: Symbol: H: Atomic Number: 1: Atomic Mass: 1.00794 atomic mass units: Number of Protons: 1: Number of Neutrons: 0: Number of Electrons: 1: Melting Point-259.14Â° C: Boiling Point-252.87Â° C: Density.08988 grams per cubic centimeter: Normal Phase: Gas: Family: Nonmetal: Period: 1: Cost: $1.00 per gram
Atomic mass is approximately the sum of the number of protons andneutrons found in the nucleus of an atom. Basically atomic mass isthe weight of the neutrons and protons in onâ¦e atom. For elements with no stable isotopes, the mass number of theisotope with the longest half-life is considered the atomic mass ofthe element. Atomic mass is, roughly, the number of protons in addition to the number of neutrons (M = P + N).