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.
The mass number is the sum of protons + neutrons.
Protons and neutrons are located in the nucleus or center of the atom.
Mass number!:)
20. the mass of an atom is determined by the sum of the number of neutrons and protons the atom has.
mass number = protons + nuetrons
mass number = protons + nuetrons
The atomic mass.
The total amount of protons and neutrons in an atom is its mass number.
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.
If you add the number of protons to the number of neutrons in an atom, you have calculated that atom's atomic mass.
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.
An assembly of protons and neutrons within an atom is called a nucleus. It is the central part of an atom that contains most of the mass of the atom and is positively charged due to the protons it contains.
The atomic mass of an atom is determined by the sum of the number of protons and neutrons in its nucleus. Protons have a positive charge, and neutrons have no charge. The total number of protons and neutrons in an atom's nucleus is called its mass number.
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.
An atom that has more neutrons than protons is called an Isotope.