Other scientists left blanks in their tables. what did mendeleev do that others did not

Hope this helps:

(if so please mark brainlest!!)

"Mendeleev arranged the elements in the order of increasing atomic mass, the properties where repeated. And he corrected the known atomic masses of some elements and used the patterns in his table to predict the properties of the elements he thought must exist but had not been discovered yet"

i believe the answer would be:

d. violin, clarinet, french horn, and tuba