Question 75

The current number of known chemical elements is closest to 100.

Currently, there are 118 confirmed chemical elements on the periodic table, making the option closest to this number 100.

A) 10

This option is incorrect as it significantly underestimates the number of known chemical elements. The periodic table consists of far more than just 10 elements, which would only cover the first few in the table.

B) 50

While closer than option A, this choice still does not reflect the accurate count of known chemical elements. There are currently over twice as many elements recognized in modern chemistry.

C) 100

This option is correct as it represents a rounded approximation of the number of known chemical elements, which is 118. It is the best choice among the options presented.

D) 1,000

This choice is incorrect as it vastly overestimates the number of known chemical elements. The total does not reach anywhere near 1,000, making this option irrelevant.

Conclusion

Option C is the most accurate representation of the current number of known chemical elements, as it approximates the actual count of 118. The other options either underestimate or overestimate the total, failing to align with the established scientific consensus on the periodic table.