Examlex
A charge of 2+ is most likely to occur for an ion formed from an atom whose electron configuration is 1s22s22p63s23p4.
Randomized Trials
Experimental studies where participants are randomly assigned to different treatment groups to evaluate the effects of those treatments.
Cohort Study
A research approach involving a group of people observed over a period to determine how certain exposures affect outcomes.
Experimental
Pertaining to a scientific approach involving controlled trials and studies to test hypotheses, investigate cause-and-effect relationships, or demonstrate specific effects.
Observational
Pertaining to research methods that involve watching and recording behaviors or outcomes in their natural setting without manipulation.
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