The mass of one specific isotope, called the mass number, is the total number of protons plus neutrons. M = P + N
Therefore, for atomic number P, you would take the mass number minus the neutrons: P = M - N.
The atomic number is the same for the all isotopes of a chemical element.
Atomic mass number is the average atomic mass for that element, which is : All the isotopes' masses known for that element averaged up. Atomic number is the element's "identity", the number of protons the element and all its isotopes have. All the isotopes of a given element will have different number of electrons and neutrons, but the protons of the element never will change.
The atomic number is the same for the isotopes of a chemical element.
Isotopes of the same element have the same number of protons (atomic number) but differ in number of neutrons (hence atomic masses).
All isotopes of an element have the same number of protons in the atomic nucleus, which is its atomic number on the periodic table. All isotopes of an element contain different numbers of neutrons in their atomic nuclei, which causes the isotopes of an element to vary in mass number (protons + neutrons).
Yes; isotopes of the same element have the same atomic number but differ in their atomic masses.
Different isotopes of an element have the same atomic number, they (only) differ in (atomic) mass NUMBER.
Isotopes. They differ in the number of neutrons in the nucleus.
the atomic number
Different isotopes of an element differ in the number of neutrons and thus in their atomic weight.
Well all Isotopes have the same atomic number so if you have the element the atomic number of an element with that same isotope is that same atomic number.
Different numbers of neutrons and hence different physical properties.