The table lists the number of protons, electrons, and neutrons in a certain radioactive nuclide.
Which is the symbol of this radioactive nuclide?
${ }_{11}^{24} Na$
${ }_{11}^{22} Na$
${ }_{11}^{13} Al$
${ }_{13}^{24} Al
Answer (1)
Determine the element by the number of protons: 11 protons correspond to Sodium (Na).
Calculate the mass number by summing protons and neutrons: 11 + 13 = 24 .
Combine the element symbol, atomic number, and mass number to form the nuclide symbol: 11 24 N a .
The symbol of the radioactive nuclide is 11 24 N a .
Explanation
Analyze the Data Let's analyze the given data. We have a radioactive nuclide with 11 electrons, 11 protons, and 13 neutrons. The number of protons defines the element, and the sum of protons and neutrons gives the mass number.
Identify the Element Since the number of protons is 11, the element is Sodium (Na).
Calculate the Mass Number The mass number is the sum of protons and neutrons, which is 11 + 13 = 24 .
Determine the Nuclide Symbol Therefore, the symbol for this radioactive nuclide is 11 24 N a .
Final Answer The symbol of the radioactive nuclide is 11 24 N a .
Examples
Understanding radioactive nuclides is crucial in various fields, such as medicine and environmental science. For instance, 11 24 N a is used in medical imaging to trace blood flow and detect circulatory problems. By injecting a small amount of this radioactive isotope into the bloodstream, doctors can monitor its movement and identify any blockages or abnormalities. This technique helps in diagnosing and treating various cardiovascular conditions, showcasing the practical application of understanding nuclide symbols and their properties.
