Name: Argon: Symbol: Ar: Atomic Number: 18: Atomic Mass: 39.948 atomic mass units: Number of Protons: 18: Number of Neutrons: 22: Number of Electrons: 18: Melting. Favorite Answer K has one more proton than Ar. Position in the periodic table is determined by atomic number, not mass. The reason for the discrepancy is that Ar has 22 neutrons compared to 20 for.
Chemical elements listed by atomic mass The elements of the periodic table sorted by atomic mass. Click on any element's name for further information on chemical properties, environmental data or health effects. This list contains the 118 elements of chemistry.
›› Ar molecular weight. Molar mass of Ar = 39.948 g/mol. Convert grams Ar to moles or moles Ar to grams ›› Percent composition by element. Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12) Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol. Weights of atoms and isotopes are from NIST article.
Atomic Mass and Nuclear Binding Energy for Ar-34 (Argon)
Abstract
This document is part of the Supplement containing the complete sets of data of Subvolume A `Nuclei with Z = 1 - 54' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms'. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Ar-34 (Argon, atomic number Z = 18, mass number A = 34).
Carbon Atomic Weight
Ar Atomic Mass In Kg
Ar Relative Atomic Mass
Ar Atomic Number
- atomic mass;
- mass excess;
- nuclear binding energy;
- nucleon separation energy;
- Q-value;
- nucleon residual interaction parameter