Respuesta :
The number of naturally occurring elements is actually in dispute, believe it or not. Some say 98, others say 88 and all cite various reasons. The traditionally accepted answer would be 92.
Answer: The correct answer for the blank is-
92.
There has been total 118 elements discovered o earth out of which approximately 92 elements are naturally occurring. Other elements are produced by artificial means.
The most abundantly occurring elements are oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorous.