At the time your textbook was written, there were _____________ known different elements.

Question

Quizplus · Accepted Answer

At the time the textbook was written, there were 114 known different elements. This number may have increased since then due to continued scientific research and discovery. Choice A is incorrect because it represents the number of elements known in 1940, while the textbook was likely written more recently. Choice C and D are also incorrect as they are much higher than the actual number of known elements.

At the Time Your Textbook Was Written, There Were _____________