Classify the particles as Fermion or Boson : α-particle, electron, H2 molecule.
Alpha particle: Boson (spin-0). Electron: Fermion (spin-1/2). H2 molecule: Boson (composite system of fermions with even total spin).
ANSWER : Here is the classification, with proper reasons :1. Alpha Particle : The alpha particle is a particle consisting of two protons and two neutrons, which is the same as a helium-4 nucleus. It is a boson because it has integer spin (spin-0). Bosons follow Bose-Einstein statistics.
2. Electron : The electron is a fundamental particle with a negative electric charge. It is a fermion because it has half-integer spin (spin-1/2). Fermions obey the Pauli Exclusion Principle and follow Fermi-Dirac Statistics.
3. H2 Molecule: The H2 molecule consists of two hydrogen atoms bonded together. Each hydrogen atom contains one proton and one electron. Although the constituent particles of the H2 molecule (protons and electrons) are fermions, the overall molecule is classified as a boson. The reason for this is that when two identical fermions (hydrogen atoms) combine to form a composite system (H2 molecule) with even total spin, the resulting particle behaves as a boson.
To summarize :
- Alpha Particle : Boson
- Electron : Fermion
- H2 Molecule : Boson
Also Read : Write the zeroth law of thermodynamics.
Also Read : Define Polarisation.
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