The molar mass of an element is equal to its. __ valence electrons atomic number atomic mass oxidation number

## Step 1<br />The molar mass of an element is the mass of one mole of that element. It is usually expressed in grams per mole (g/mol). The molar mass of an element is numerically equivalent to the atomic mass of the element, but expressed in g/mol rather than amu.<br /><br />## Step 2<br />The atomic mass of an element is the average mass of the atoms of an element, measured in atomic mass units (amu). It is approximately equivalent to the number of protons and neutrons in the nucleus of an atom of the element.<br /><br />## Step 3<br />Valence electrons are the electrons in the outermost shell of an atom and are involved in chemical bonding. The oxidation number is a concept used in chemistry to indicate the degree of oxidation of an atom in a compound.<br /><br />## Step 4<br />Given these definitions, the correct answer is "atomic mass" because the molar mass of an element is equal to its atomic mass in g/mol.