how does mass number change during nuclear fission and fusion? what is the significance of mass number in nuclear weapons and reactors?

Mar 1, 2001 ... Number of electrons is normally equal to the number of protons ... A is the mass number - number of protons (Z) plus the number of ... Aug 29, 2024 ... ... number of electrons must equal the number of protons. This example may lead you to believe that atoms have the same number of protons and ... Sep 10, 2020 ... The mass number is equal to the total number of protons and neutrons in an atom's nucleus. It is defined by the formula A = Z + N, where Z is ... What is Mass Number? · The number of protons and neutrons combine to give us the mass number of an atom. · It is represented using the letter 'A. · As both protons ... Atomic number is equivalent to the number of neutrons while the mass number is equivalent to the sum of the number of protons and number of electrons. The mass number is approximately equal to the atomic mass, which is the mass of a single atom of a element measured in atomic mass units (amu). The atomic mass ... 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 ... (An observant student might notice that the sum of an atom's subatomic particles does not equal the atom's actual mass: The total mass of six protons, six ... Each atom also has a mass number, denoted by the symbol A. The mass number of an atom is equal to the number of protons plus the number of neutrons that it ... The atomic number is equal to the number of protons in an atom's nucleus. The atomic mass is the sum of the mass of protons and neutrons.