Question

Which of the following reduces the number of protons in the nucleus of an atom by 2?

A) Alpha decay

B) Beta decay

C) Electron capture

D) Gamma emission

EDIT: The Correct Answer Was Alpha Decay

Answer 1

Alpha Decay

Step-by-step explanation:

An alpha particle comprises two neutrons and two protons. Therefore, when an element undergoes alpha decay or beta decay, it loses mass, transforming into a different element and changing its position on the periodic table. For example, uranium-238, the most common isotope of uranium, with a half-life of 4.5 billion years, emits alpha particles to become thorium-234, as shown in the picture provided. (reduces the number of protons in the nucleus of an atom by 2)

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Answer 2

A) Alpha Decay

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