18 neutrons
nass number is the number of neutrons plus protons in the nucleus of an atom
The mass number of an atom is the sum of the numbers of protons and neutrons in the nucleus of the atom. It also indicates the total positive charge on the nucleus.
The mass number is the sum of protons + neutrons.
The sum of the protons and neutrons in the nucleus
no, they don't. instead they make up the nucleus of the atom. protons and neutrons are made of quarks, which are held together by gluons.which means that the nuceuls and electrons together make the atom.
There are two types of particles in the nucleus of an atom, which are the Protons and the Neutrons. The number of particles in the nucleus depends what is the element. For example, Oxygen has 8 protons and 8 neutrons in the nucleus and Phosphorus has 15 protons and 16 neutrons in the nucleus.
Mass Number
nass number is the number of neutrons plus protons in the nucleus of an atom
18 neutrons
The mass number of an atom is the sum of the numbers of protons and neutrons in the nucleus of the atom. It also indicates the total positive charge on the nucleus.
The mass number is the total weight of neutrons and protons in the nucleus of an atom.
The mass number is the total weight of neutrons and protons in the nucleus of an atom.
Z, also known as the mass number, describes the total number of protons and neutrons in a nucleus.
No. Neutrons have no charge. They are neutral ... the main reason they're called NEUtrons.The total charge on an atom is not affected by the number of neutrons in its nucleus.
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.
Atomic number is the number of protons in the nucleus of an atom.Mass number is the number of protons plus neutrons in the nucleus of an atom of a specific isotope.Atomic mass is the total mass of a an atom of a particular isotope, not just the mass of the nucleus. Atomic mass is usually measured in atomic mass units (amu), and is the total mass of protons, neutrons, and electrons in an individual atom of the isotope.
The atomic mass in an element is the total number of protons and neutrons in an atom's nucleus.