Identify and write the symbol for each of the five nuclides in the decay series shown in Problem.
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1
Identify the initial nuclide in the decay series. This is typically a heavy element, such as uranium or thorium, which undergoes radioactive decay.
Determine the type of decay that occurs first in the series. Common types include alpha decay, beta decay, and gamma decay.
For each decay step, write the nuclear equation. For example, in alpha decay, the nuclide loses an alpha particle (2 protons and 2 neutrons), resulting in a new element with an atomic number decreased by 2 and a mass number decreased by 4.
Identify the new nuclide formed after each decay step by using the periodic table to find the element with the resulting atomic number.
Repeat the process for each subsequent decay step in the series until all five nuclides are identified.
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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
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주요 개념
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Nuclides
Nuclides are distinct nuclear species characterized by their number of protons and neutrons. Each nuclide is represented by a chemical symbol, which includes the element's symbol and its atomic mass. Understanding nuclides is essential for identifying the specific isotopes involved in nuclear reactions and decay processes.
Decay Series
A decay series is a sequence of nuclear reactions in which an unstable nuclide transforms into a series of other nuclides until a stable one is reached. Each step in the series involves the emission of radiation, such as alpha or beta particles. Recognizing the order and types of decay is crucial for determining the symbols of the nuclides involved.
Nuclear symbols are shorthand representations of nuclides that include the element's symbol, atomic number (number of protons), and mass number (total number of protons and neutrons). For example, the symbol for carbon-14 is written as ¹⁴C, where 14 is the mass number. Familiarity with these symbols is necessary for accurately identifying and writing the nuclides in a decay series.