Which is not true about all of these elements? A. They are all in the same group
B. They all have the same number of valence electrons
C. They all have the same number of protons
D. They all share similar properties

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.