|definition of mass number biology||0.84||0.8||8696||22|
Mass number is an integer equal to the sum of the number of protons and neutrons of an atomic nucleus. The mass number allows enable us to tell the difference between elements with a different number of neutrons, called isotopes. The mass number is a count and is unitless.What does mass number represent?
The mass number tells us the number (the sum of nucleons) of protons and neutrons in the nucleus of an atom. The atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom. It is traditionally represented by the symbol Z. The atomic number uniquely identifies a chemical element.What does the mass number indicate?
The mass number of an atom specifies the numbers of particles in the nucleus. It is the sum of the number of protons and neutrons. In scientific writing, the mass number is usually located to the upper left of an atom’s symbol. When given together with the atomic number, or the number of protons, the mass number tells an atom’s element and isotope.What is the definition of mass number?
Definition of mass number : an integer that approximates the mass of an isotope and designates the number of nucleons in the nucleus : an integer that approximates the mass of an isotope and that designates the number of nucleons in the nucleus the symbol for carbon of mass number 14 is 14C or C 14 — compare atomic mass