A. Why are elements placed in the same group on the periodic table?
B. Explain at least one pattern on the periodic table.
C. What is the name of the group 1 elements?

The gravitational attraction between two objects will if one object acquires more mass .

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

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