The sum of the number of protons and neutrons in the atomic nucleus is called the "mass number".
For example, Lithium has 3 protons and 4 neutrons in its nucleus. It's mass number is 7 (3+4). The mass number usually goes in front of the atomic symbol and in superscript, such as 7Li.
The protons and neutrons, which are called nucleons when they are talked about as the components of an atomic nucleus, add up to make the atomic mass of an atom. Strictly speaking, the electrons are included, but they weigh next to nothing, being about 1/1836th the mass of a proton. That lets us use as the Atomic Mass the number of nucleons in the nucleus of the atom.
If all of the atomic masses of atoms of a given element are averaged, the result is the element's atomic weight. These terms are often confused and thus special care must be taken when using them.
Protons + Neutrons add up to the mass number of the element. This is a given number and not located on the Periodic Table. However, the (non-single digit) number on the periodic table is referred to as the Atomic Mass which is the average of the relative abundance of all isotopes of that single element.
a total count of the neutrons and protons in an atom is the mass number.
The total number of protons and neutrons in an atoms is the mass number of the atom.
atomic number
the atomic weight
mass number
atomic mass : )
The number protons in an atom is called the atomic number (it is this number that tells us which element the atom is). The number of neutrons in an atom can change, but the term for the amount of neutrons is called an isotope. The number of protons and neutrons added together is called the atomic mass.
Neutrons, protons and electrons are the parts of Atoms.
The nucleus is in the middle, which consists of neutrons and protons. The electron cloud surrounds it in order to create a balance of electrical charge between the protons and the electrons. A cluster of protons and neutrons.
nucleus
mass number = protons + nuetrons
The total amount of protons and neutrons in an atom is its mass number.
The atomic mass.
atomic mass : )
An atom that has more neutrons than protons is called an Isotope.
The sum is called mass number.
Within an atom the protons and neutrons are located at the center of the atom, the location is called the nucleus.
An assembly of protons and neutrons within an atom constitutes the atom's NUCLEUS.
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.
no there are different elements, and you can check a periodic table for more information.
The number protons in an atom is called the atomic number (it is this number that tells us which element the atom is). The number of neutrons in an atom can change, but the term for the amount of neutrons is called an isotope. The number of protons and neutrons added together is called the atomic mass.
Neutrons, protons and electrons are the parts of Atoms.