Atom Composition: Boson or Fermion?

In summary, an atom is a fermion because it consists of an electron with spin 1/2 and a positively charged spin 2 particle at the nucleus. This property is similar to deuterium, where the nucleus has spin 1 or 0 depending on the neutron and proton spins. The atom's spin of 1/2 is an integer, making it a fermion. Even with different values of total spin, the rest of the spins must also be integers or half-integers, leaving no ambiguity between bosons and fermions. This is true for real particles and can be represented using [tex] and [itex] tags.
  • #1
ee7klt
10
0
an atom consists of an electron (spin 1/2) and a positively charged spin 2 particle at the nucleus (in place of the proton). is this 'atom' a boson or a fermion?
 
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  • #3
Deuterium has essentially the property you are asking about. The nucleus has spin 1 or 0 depending on the way the neutron and proton spins add. Since the atom has 1/2 integer spin it is a fermiom.
 
  • #4
well you could have $s_{max} = 5/2$ and $s_{min} = 3/2$ with no more in between. both of which are half integer spins - so a fermion. either way you cut it, if anyone value of total spin is an integer (half-integer), the rest have to be integers (half-integer) so no ambiguity between bosons and fermions...?
 
  • #5
Nope,not for real particles there isn't any ambiguity.

This Latex doesn't work with $ tags,but with [ tex ] and [ /tex ] tags (without the spaces,of course) and for formulas inside text [ itex ] and [ /itex ] ...

Daniel.
 

FAQ: Atom Composition: Boson or Fermion?

What is the difference between a boson and a fermion?

A boson is a type of elementary particle that has integer spin, while a fermion is a particle with half-integer spin. This difference in spin leads to different behaviors and interactions between the particles.

How are bosons and fermions related to the composition of atoms?

Bosons and fermions are the building blocks of atoms. Bosons make up the force-carrying particles, such as photons, while fermions make up the matter particles, such as protons, neutrons, and electrons.

Can both bosons and fermions exist in the same atom?

Yes, both bosons and fermions can exist in the same atom. For example, an atom of helium has two bosons (two protons) and two fermions (two neutrons).

Do bosons and fermions have different properties?

Yes, bosons and fermions have different properties. For example, bosons can occupy the same quantum state at the same time, while fermions cannot. This is known as the Pauli exclusion principle.

How does the composition of atoms affect their behavior?

The composition of atoms, specifically the types and number of bosons and fermions, affects their behavior and properties. For example, the number of protons and electrons in an atom determines its chemical properties, while the number of neutrons can affect its stability and radioactivity.

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