Isotopes
Yes, and they are called isotopes.
isotopes
Atoms of the same element with different atomic masses are known as isotopes. Isotopes differ only by the number of neutrons present in the nucleus of the isotopes. The number of protons is the same for all isotopes of an element (because if there were different numbers of protons, then the atoms would not be of the same element).
Atoms with the same atomic number are all atoms of the same element. However, if the atoms have different molecular weights, they are isotopes of the same element.
An element having various atomic masses is called an "isotope." Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons, leading to different atomic masses. For example, carbon has several isotopes, including carbon-12 and carbon-14, which differ in their neutron count.
Atoms that have the same number of protons but different weights are called isotopes. Isotopes of an element have the same atomic number (number of protons), but a different atomic mass (sum of protons and neutrons) due to varying numbers of neutrons.
molybdenum. a black powder as used in oil additive like sulphide.
If they have the same atomic number but different mass, then they have a different number of neutrons, and they are called ISOTOPES.
When the masses of naturally occurring isotopes of an element are averaged, the result is called the element's average atomic mass.
Relative atomic mass, also called atomic weight, is listed on the periodic table for each element. There is no element listed on the periodic table with a relative atomic mass of 15.5.
The element with an atomic number of 112 is called Copernicium. It is a synthetic, radioactive element that can only occur in a laboratory.
the answer is that it is called a atomic number.