Question

problem 21: tell whether this argument is a valid or invalid deduction. all chemists have heard of the periodic table. dr. einstein is not a chemist. therefore, dr. einstein must not have heard of the periodic table. after you pick your answer press go. valid invalid

Explanation:

The statement only says chemists know the periodic - table. Just because Dr. Einstein is not a chemist doesn't mean he can't know it. There is no exclusive link between being a chemist and knowing the periodic table.

Answer:

Invalid