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
The atomic mass of an element is the average mass of the atoms of an element measured in atomic mass unit (amu, also known as daltons, D). The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of each isotope is multiplied by the abundance of that particular isotope. (Atomic mass is also referred to as atomic weight, but the term mass is more accurate.)