An alpha-particle has how many neutrons?

An alpha particle has two protons and two neutrons.

Alpha particle

An alpha particle has two protons and two neutrons and is a very stable configuration of particles. In alpha decay, the atomic number changes, so the original (or parent) atoms and the decay-product (or daughter) atoms are different elements and therefore have different chemical properties.

  • α Particles have a positive charge and are identical to helium nuclei.
  • Alpha particles have a minimal ability to penetrate other materials.
  • Alpha particles are relatively slow and heavy compared with other forms of nuclear radiation.
  • Alpha-particle emitters are particularly dangerous if inhaled, ingested, or if they enter a wound.

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