how is the mass number defined for exotic atoms? what is the mass number of antimatter counterparts of ordinary atoms?

Proton Numbers Less Than or Equal to 82. Nuclei are composed of nucleons ... mass number has some odd-even fluctuation. Here are the incremental binding ... The mass number is equal to the number of protons plus neutrons. In a neutral atom, the number of protons equals the number of electrons. The charge on an ion ... Feb 23, 2024 ... Because most elements (especially the smaller ones) tend to have one most common form of isotope and a low percentage of alternate isotopes, the ... As the number of neutrons in an atom increases or decreases, the isotopes tend to become more and more unstable until they get to the point where they decay ... It allows us to be able to tell the difference between elements with a different number of neutrons, called isotopes. The mass number is also related to the ... Mar 26, 2025 ... Mass number is always equal to the sum of the number of protons and the number of neutrons. Electrons: Protons: Dec 20, 2020 ... How many neutrons are there in atoms of oxygen-18? We know that the mass number is equal to the number of protons plus the number of neutrons. Experiment 1 Kendall's tau rank correlation between female or male mass, and the number and mass of ... those variables that had equal variances and were normally ... Jul 22, 2020 ... When compared to the average mass per nucleon in carbon-12, which is moderately strongly-bound compared with other atoms, the mass defect of ... Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how ...