How are the three elements above organized on the periodic table? Niobium and Cobalt are in the same period.
Cobalt and Scandium are in the same period.
e
Cobalt and Scandium are in the same group.
Niobium and Cobalt are in the same group.

The same side of the moon always faces earth because the

Select the correct answer from each drop-down menu. in the process of nuclear fission, . fission only happens to very atoms. the fission process usually also produces several free .

Which statement describes the law of superposition? sedimentary rocks were originally in horizontal layers. in horizontal rock layers, each layer is younger than the one below it. rock layers must be in existence before something can happen to them. rocks that are not in horizontal layers were shifted by some geologic event.