What Are the Key Differences Between Atoms and Nuclides?

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Discussion Overview

The discussion centers on the differences between atoms and nuclides, exploring the definitions and characteristics of each term within the context of nuclear physics. Participants express varying levels of understanding and seek clarification on related concepts such as isotopes, isobars, and isotones.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant notes that a nuclide is specified by its nucleus, while an atom consists of a nuclide plus electrons.
  • Another participant explains that a nuclide is characterized by the number of protons, neutrons, and energy content, suggesting a chart of nuclides for reference.
  • There is a discussion about the broadness of the nuclide concept, with one participant expressing that it seems too general and encompasses any combination of protons, neutrons, and electrons.
  • Some participants argue that all possible combinations of neutrons and protons found in nature are classified as nuclides, with isotopes being specific cases of nuclides with the same number of protons.
  • A participant questions what lies outside the scope of nuclides, leading to a response that suggests there is nothing outside this scope in terms of protons and neutrons.
  • Another participant proposes an analogy comparing nuclides to all living creatures, while isotopes are likened to variations within a species.
  • There is a query about whether nuclides and atoms can be used interchangeably, indicating uncertainty in their definitions.

Areas of Agreement / Disagreement

Participants express differing views on the definitions and implications of nuclides and atoms, with no consensus reached on whether the terms can be used interchangeably. The discussion remains unresolved regarding the clarity of the nuclide concept.

Contextual Notes

Some participants demonstrate confusion regarding the definitions and relationships between nuclides, atoms, and related terms, indicating a need for further clarification on these concepts.

jimmyy
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Hello,

I'm fairly new with the nuclear physics, but I'm willing to study and learn as much as possible.

I've been reading on wikipedia about the nuclides, but I couldn't understand what is the difference between an atom and a nuclide?

On wikipedia they say that a nuclide is a species of atom, but what is the difference then?

I can understand isotopoes, isobars, isotones, but I do not get the nuclides...

Thanks
 
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A nuclide is specified by its nucleus, an Oxogen atoms nucleus can for instance have different neutron content, so in this case the nuclide is called isotope. Atom is nuclide + electrons.
 
A nuclide refers to a species of atom characterized by the constitution of its nucleus and hence by the number of protons, the number of neutrons, and the energy content.

See chart of nuclides - http://www.nndc.bnl.gov/chart/

Zoom 1 (click on the 1 after clicking the cursor on any part of the chart) goes to the details on the atom
 


malawi_glenn said:
A nuclide is specified by its nucleus, an Oxogen atoms nucleus can for instance have different neutron content, so in this case the nuclide is called isotope. Atom is nuclide + electrons.

Thank you malawi but I thought that nucleons where neoutrons + protons, and then nucleons + electrons = atoms

As I said isotopes I understand, they are related to the same chemical element.

I also understand that nuclide is a more general concept that includes isotopes, but I can't yet grasp it, as for example isotones, they have only a constant neutron number, thus the chemical element can vary, therefore for me, the nuclide concept is too broad, meaning it can be anything, any chemical element, in any combination of protons+neutron+electrons

Thank for your answers!
 


look at the chart of the nuclides which astronuc gave you - those are the NUCLIDES: all possible combinations of neutrons and protons which are found in nature. All nucleids with the same Z are called isotopes, and with same Z + N = A are called isobars and so on.

It is not a too broad concept, it is like "fishes" -> You have different kinds of fishes..
 


Malawi can you give an example of non-nuclide?
I mean what is outside of the nuclide scope?
 


jimmyy said:
I mean what is outside of the nuclide scope?

in terms of protons and neutrons, nothing!

malawi_glenn said:
NUCLIDES: all possible combinations of neutrons and protons (which are found in nature.)
 


Than would you agree with me in saying that nuclides sounds more like all living creatures, not only fish :), and than you have variations on the same species of animals (isotopes where the chemical element is the same, but the neutrons differ...)

What is the difference between nuclides and atoms, can they be used interchangeably?
 


I meant that fishes has different families and species...maybe you didn't know that ;-)

Atom as electrons, an atom is nucleus + electrons.
 

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