Final answer:
Bismuth-214 has a nucleus containing 83 protons and 131 neutrons, as indicated by its nuclide notation 214Bi, where 214 is the mass number and Bi is the element symbol for bismuth with an atomic number of 83.
Step-by-step explanation:
The nucleus of bismuth-214 consists of protons and neutrons. The nuclide notation 214Bi indicates that bismuth-214 has a mass number (A) of 214, which is the sum of its protons and neutrons. To find the composition of the nucleus, we need to know the atomic number (Z) of bismuth, which is 83. This means bismuth has 83 protons. The number of neutrons (N) can be found by subtracting the atomic number from the mass number: N = A - Z. So, bismuth-214 has 83 protons and 131 neutrons (214 - 83 = 131).