An alpha particle [tex]\binom {4} {2}[/tex]He is produced in alpha decay reactions, while the parent nucleus' atomic number and mass number drop by 2 and 4 correspondingly.
Alpha decay:
- Alpha decay is a nuclear process whereby an unstable nuclear transforms into a different element by ejecting particles composed of two protons and two neutrons.
- The alpha particle also referred to as a helium nucleus, is the expelled unit of matter.
- Alpha particles have large masses and electrostatic attraction.
- An atomic number decreases by 2 and the atomic weight drops by 4 when a radioactive nucleus disintegrates by emitting [tex]\bold{\alpha}[/tex] particle.
Therefore, the final answer is "Option B".
Find out more about the alpha decay here:
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