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Oduvanchick [21]
3 years ago
14

) In a nuclear reaction, which quantity is the same before and after the change? (1 point)

Chemistry
1 answer:
olganol [36]3 years ago
8 0

Answer:

In alpha decay, shown in Fig. 3-3, the nucleus emits a 4He nucleus, an alpha particle. Alpha decay occurs most often in massive nuclei that have too large a proton to neutron ratio. An alpha particle, with its two protons and two neutrons, is a very stable configuration of particles. Alpha radiation reduces the ratio of protons to neutrons in the parent nucleus, bringing it to a more stable configuration. Many nuclei more massive than lead decay by this method.

Explanation:

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4 years ago
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Explanation:

Information given about the element:

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For the atomic number:

Neutral atoms such as this one would have their atomic number to be the same with their number of electrons and protons:

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For the mass number:

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