Which of the following statements concerning the known elements is correct?
A) No new elements have been identified within the last 40 years.
B) Most elements occur naturally.
C) 108 elements are known at present
D) Scientists have synthesized all possible non-natural elements.

Question

Quizplus · Accepted Answer

Currently, 118 elements are known, and new elements have been identified within the last 40 years (the most recent being tennessine in 2010). While some elements do occur naturally, others have been synthesized by scientists. However, it is not possible to synthesize all possible non-natural elements as the properties of such elements may be beyond the reach of current technology.

Which of the Following Statements Concerning the Known Elements Is