Linked from

The 18 pages that link to Mass number, each with the reason it gives.

• IsotopeRelated: Different neutron counts give isotopes of an element different mass numbers.

• Alpha decayRelated: The emitted helium-4 nucleus lowers the parent’s mass number by four.

• NuclideRelated: It summarizes the two particle counts that specify a nuclide.

• IsobarRelated: Isobars share this number.

• Calcium-48Related: The 20 protons and 28 neutrons sum to calcium-48's mass number.

• Isotopic abundanceRelated: Different mass numbers help distinguish isotopes in measured spectra.

• Isotopes of hydrogenRelated: Hydrogen isotope names and symbols encode their different mass numbers.

• Rubidium-87Related: The number 87 denotes rubidium-87’s total nucleon count.

• Isotopes of oxygenRelated: It distinguishes oxygen-16, oxygen-17, and oxygen-18 by their nucleon totals.

• Whole-number ruleRelated: Its integer value gives the basic nuclear count behind the rule.

• Decay productRelated: Conservation of nucleon number constrains the mass numbers of decay products.

• Isotopes of nitrogenRelated: It distinguishes nitrogen-14 from nitrogen-15 by their neutron counts.

• Isotopes of uraniumRelated: Uranium isotope names distinguish nuclei by their mass numbers.