Question

which of the following reasons explains why dmitri mendeleev is credited with the creation of the modern day periodic table? he was the first to correctly predict the properties of elements that had not been discovered yet. he was the first to organize the elements he was the first person to form a committee that gave out scientific awards so he got to choose which award he wanted. he was the first to discover elements

Explanation:

Mendeleev arranged elements by atomic mass and predicted properties of undiscovered elements. His predictions were accurate and crucial for the acceptance and development of the periodic table. Others had organized elements before, and the other options are not relevant to his work on the periodic table.

Answer:

He was the first to correctly predict the properties of elements that had not been discovered yet.