In a student experiment 4 earthworms were placed at each end of a compartment as shown after 10 minutes all of the earthworms were together in the same area the students concluded that the earthworms had moved as far as they could in that period of time which alternative explanation is also supported

The other supportive explanation is that The earthworms moved to their ideal temperature range

Explanation:

As the earthworms moved together, they achieved the ideal temperature required for them to further progress and thus they remained in the state and did not move further.

allowed for the prediction of the properties of missing elements.

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.