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No elements have the same average mass, but some isotopes are the same mass as other elements, For example Carbon-13 (an isotope of carbon) has the same mass as nitrogen-13 (which is also an isotope of nitrogen).

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Q: Name two elements have the same mass numbers?
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Related questions

What is the difference between isobar and isotope?

isobars are elements with same mass numbers (Atomic Mass) and different atomic number (number of proton or electron)


How Is it possible for the atoms of different elements to have the same mass numbers?

It is possible only because of different number of neutrons.


What is an element that has the same atomic number but different mass numbers?

If a sample of an element contains atoms of different mass numbers, the name of the element followed by a hyphen and the mass number is the name of an isotope of the element.


How do isotopes differ and why is the atomic number of elements not a whole number?

Isotopes differ from each other by having different numbers of neutrons but the same number of protons since they are only the same element if they have the same number of protons. Atomic numbers aren't whole because their mass is based of the mass of hydrogen and amu's (atomic mass units) and due to how elements are formed, minute amounts of mass are lost in order to form the nuclear bonds resulting in not whole numbers.


What name is given to elements with the same number of protons but differing numbers of neutron?

isotopes


What is the term for atoms of the same element that differ in their mass numbers?

We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.


Can an atom of two different elements have the same mass number?

Yes. The mass number is basic to the different elements, even more useful than the atomic number. (Unless it is an isotope. Isotopes have a different amount of neutrons than the basic element atom which makes a difference in mass number too. So, a difference in mass numbers doesn't always mean it is a different element.)


Which isotopes of uncharged elements have different numbers?

The isotopes of the same element has the same atomic number. But the mass number (atomic mass) is different.


What same mass numbers do isotopes have?

Mass numbers of isotopes are different.


Do elements in the same group have the same atomic mass?

No.


What is the atom with same atomic number but different mass number?

We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.


Do Isotopes of uranium have different atomic numbers?

No. By definition isotopes of an element have the same number of protons (that is what makes them uranium, for example) but different numbers of neutrons (neutral particules in the nucleus which provide mass).