2. Which of the following is a physical property that Mendeleev used to design the periodic table? F. Atomic weight
Guidation state
H. Reactivity with metals
1 Crystalline structure

explanation:

crosscutting concepts have application across all domains of science. as such, they are a way of linking the different domains of science. they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter