the symbol for a radioactive nuclide is $_{56}^{131}ba$. which statement is correct?\no the atomic number of…
the symbol for a radioactive nuclide is $_{56}^{131}ba$. which statement is correct?\no the atomic number of the radioactive nuclide is 75.\no the mass number of the radioactive nuclide is 131.\no the number of neutrons that are present in the nucleus of each atom is 56.\no the number of protons that are present in the nucleus of each atom is 131.
Answer
Answer:
The mass number of the radioactive nuclide is 131.
Explanation:
Step1: Recall nuclide notation meaning
In the notation $_{56}^{131}Ba$, the sub - script represents the atomic number and the super - script represents the mass number.
Step2: Identify atomic number
The atomic number (sub - script) of $_{56}^{131}Ba$ is 56, so the number of protons is 56.
Step3: Identify mass number
The mass number (super - script) of $_{56}^{131}Ba$ is 131.
Step4: Calculate number of neutrons
Number of neutrons = Mass number - Atomic number. So, number of neutrons = 131 - 56=75. So the correct statement is that the mass number of the radioactive nuclide is 131.