An element's period is it's row in the periodic tables.
A chemical change is a chemical reaction involving the rearrangement of atoms. While a physical change can often be reversed
Explanation:
Sorry if I'm wrong but it's 1) learner engages in scientifically oriented questions. 2) learner gives priority to evidence in responding to questions. 3) learners formulate explanations from evidence. 4) learner connects explanations to scientific knowledge. 5) learner communicates explanations.
<span>It is called the First Triumvirate. The members are Crassus, Pompey, and Caesar. The course of action of this First Triumvirate had no legitimate status, and its motivation was to solidify the political energy of the three and their supporters against the senatorial tip top.</span>