Respuesta :
Answer:
The correct answer is alpha decay. The thorium atom loses two protons and two neutrons.
Explanation:
The Alpha decay process occurs in step one. Hence, option B is correct.
What is alpha decay?
The radioactive decay of an atomic nucleus by emission of an alpha particle.
Alpha decay is one process that unstable atoms can use to become more stable. During alpha decay, an atom's nucleus sheds two protons and two neutrons in a packet that scientists call an alpha particle.
Since an atom loses two protons during alpha decay, it changes from one element to another.
Hence, option B is correct.
Learn more about the Alpha decay here:
https://brainly.com/question/14081292
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