the symbol for a radioactive nuclide is $_{56}^{131}ba$. which statement is correct?\nthe atomic number of…
the symbol for a radioactive nuclide is $_{56}^{131}ba$. which statement is correct?\nthe atomic number of the radioactive nuclide is 75.\nthe mass number of the radioactive nuclide is 131.\nthe number of neutrons that are present in the nucleus of each atom is 56.\nthe number of protons that are present in the nucleus of each atom is 131.
Answer
Brief Explanations:
In the nuclide notation $^{A}{Z}X$, $A$ is the mass - number and $Z$ is the atomic number. For $^{131}{56}Ba$, the mass number $A = 131$ and the atomic number $Z=56$. The number of protons is equal to the atomic number ($Z = 56$), the number of neutrons $N=A - Z=131 - 56 = 75$.
Answer:
The mass number of the radioactive nuclide is 131.