If you add the number of protons to the number of neutrons in an atom, you have calculated that atom's Atomic Mass.
The mass number of an atom is the sum of its protons and neutrons. It represents the total number of nuclear particles (protons and neutrons) in the atom's nucleus. The number of protons in an atom determines its element, while the number of neutrons can vary to create different isotopes of the element.
mass number = protons + nuetrons
The mass number of an atom is defined as the total number of protons and neutron (collectively called "nucleons") in the atomic nucleus. For example, a helium atom with 2 protons and 2 neutrons would have a mass number of 4.
The number of protons is equal to the number of electrons and the atomic number. The number of neutrons is different for each isotope (number of neutrons = atomic mass of the isotope [or mass number] - number of protons).
13. The mass number is always the total number of protons and neutrons.
the total number of protons and neutrons in the nucleus.
The mass number of an element is equal to the sum of the elements neutrons and protons.
Mass number!:)
The atomic mass of an element is equal to the sum of the number of protons and neutrons in its nucleus. It is not directly related to the atomic number, which represents the number of protons in an atom.
The mass number is the average atomic mass of all the isotopes that are found in nature.
Protons and neutrons together make up the atomic nucleus. Protons are positively charged particles, while neutrons have no charge. The number of protons in an atom determines its atomic number, while the total number of protons and neutrons together determine its atomic mass.
Mass number is about the neutrons and protons. The total of neutrons and protons.
The mass number of an atom is the sum of its protons and neutrons. It represents the total number of nuclear particles (protons and neutrons) in the atom's nucleus. The number of protons in an atom determines its element, while the number of neutrons can vary to create different isotopes of the element.
The sum of the number of protons and the number of nuetrons.
The sum of the number of protons and neutrons in an atom is known as the atomic mass. It is equivalent to the mass number of the atom, which represents the total number of protons and neutrons in the nucleus.
The mass number of an atom is equal to the number of protons and neutrons that are in the nucleus of the atom. Atoms are the basic units of a chemical element.
mass number = protons + nuetrons