Final answer:
The statement is false. One mole of any substance, including bismuth and argon, contains the same number of atoms, as defined by Avogadro's number, 6.022 x 1023.
Step-by-step explanation:
The statement: One mole of bismuth (Bi) contains more atoms than one mole of argon (Ar) is false. The concept of a mole in chemistry is defined by Avogadro's number, which states that one mole of any substance contains precisely 6.022 x 1023 particles (atoms, molecules, ions, etc.) regardless of the type of the substance. Therefore, both one mole of bismuth and one mole of argon contain the same number of atoms.
Learn more about Moles in Chemistry