Molybdenum Has an Atomic Number of 42

question 5

Multiple Choice

Molybdenum has an atomic number of 42. Several common isotopes exist, with mass numbers from 92-100. Which of the following can be true?

• A) Molybdenum atoms can have between 50 and 58 neutrons.
• B) Molybdenum atoms can have between 50 and 58 protons.
• C) Molybdenum atoms can have between 50 and 58 electrons.
• D) Isotopes of molybdenum have different numbers of electrons.

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Definitions:

Externality

A consequence of an economic activity that is experienced by unrelated third parties.

Externalities

Economic impacts on bystanders not directly engaged, with potential for both positive and negative outcomes.

Transaction Costs

The expenses incurred when buying or selling goods and services, which can include fees, commissions, and the costs of the time and effort involved in making the transaction.

Coase Theorem

A principle stating that if trade in an externality is possible and there are no transaction costs, bargaining will lead to an efficient outcome regardless of the initial allocation of property rights.