Protons: 42
Neutrons: 56
Electrons: 42
Each molybdenum atom has 42 protons in its nucleus, giving it a positive charge of +42. To maintain electrical neutrality, a neutral molybdenum atom also has 42 electrons orbiting its nucleus. The number of neutrons can vary, giving rise to different isotopes of molybdenum. The most common isotope is molybdenum-98 (Mo-98), which has 56 neutrons.
