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Relative Atomic Mass

is

the ratio of the average

massof

atomsof an

elementto 1/12 of the mass of an atom of

carbon-12. The mass number of an isotope is the sum of protons and neutrons in the atoms of the isotope.

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Q: Why is the mass numbers of isotopes exact whole numbers but the relative masses of most Atoms are not exact whole numbers?
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Related questions

Which term describes atoms with different atomic masses due to varying numbers of neutrons?

Isotopes describe atoms with different atomic masses due to varying numbers of neutrons.


What does it mean if two atoms are isotopes?

Two atoms are isotopes if they have the same number of protons but different numbers of neutrons in their atomic nuclei. This results in atoms of the same element having different atomic masses.


What are atoms of the same element but with different masses?

Atoms of the same element but with different masses are called isotopes. Isotopes of an element have the same number of protons (and hence the same atomic number) but differ in the number of neutrons, which results in different atomic masses.


What is the name for atoms of an element that have different masses?

Isotopes are atoms of an element that have different masses due to a different number of neutrons in their nuclei.


What are atoms that have different masses but the number of protons?

Atoms that have different masses but the same number of protons are called isotopes. Isotopes of an element have the same number of protons, which determines the element's identity, but a different number of neutrons, leading to variations in atomic mass.


Two atoms of same elements with different masses?

s


Atoms of the same element with different atomic masses?

Isotopes are atoms of the same element with different atomic masses, characterized by the number of neutrons in the nucleus. Despite having different masses, isotopes share the same number of protons and electrons. Certain isotopes may be unstable, leading to radioactive decay.


What are atoms of the same element thay have different atomic masses?

Atoms of the same element that have different atomic masses are called isotopes. Isotopes of an element have the same number of protons but different numbers of neutrons. This results in variations in atomic mass while maintaining the same chemical properties.


What occurs for two atoms to be isotopes of each other?

Two atoms are isotopes of each other when they have the same number of protons but different numbers of neutrons. This results in the atoms having the same chemical properties but different atomic masses.


How are isotopes different from state atoms?

The atoms of a chemical element can exist in different types. These are called isotopes. They have the same number of protons (and electrons), but different numbers of neutrons. Different isotopes of the same element have different masses.


How are isotopes different than naturally occurring elements?

Isotopes are atoms of the same element with different numbers of neutrons, while naturally occurring elements refer to all atoms of a particular element found in nature. Isotopes have the same number of protons but different atomic masses, whereas naturally occurring elements have consistent atomic masses based on the average of all isotopes present.


What atoms has different masses but the same atomic number?

Isotopes of an element have different masses but the same atomic number. Isotopes have the same number of protons and electrons but different numbers of neutrons in their nuclei.