Molybdenum Has an Atomic Number of 42

question 72

Multiple Choice

Molybdenum has an atomic number of 42. Several common isotopes exist, with mass numbers of 92, 94, 95, 96, 97, 98, and 100. Therefore, which of the following can be true?

• A) Molybdenum atoms can have between 50 and 58 neutrons.
• B) The isotopes of molybdenum have different electron configurations.
• C) The isotopes of molybdenum can have between 50 and 58 protons.
• D) The isotopes of molybdenum have between 50 and 58 neutrons and have different electron configurations.
• E) The isotopes of molybdenum have between 50 and 58 protons and have different electron configurations.