Compared to lead-208, what does the nuclide bismuth-208 have more of?
a. protons
b. neutrons
c. energy levels
d. bonding configurations

Bismuth will have more of protons.

Explanation:

Atomic number of an element is equal to number of protons.

The atomic number of lead = 82, so the number of protons = 82

The atomic number of bismuth = 83, so the number of protons =83

The mass number = number of protons + number of neutrons

As given that mass number of each of the elements is same.

As the number of protons of bismuth is more than leas, the number of neutrons in bismuth will be less than lead.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.