Why might a scientist repeat an experiment if he/she did not make a mistake in the first one? an experiment should be repeated to a) increase income for increased work. b) prove how interesting the study was. c) ensure the results are accurate. eliminate d) eliminate steps and save time.

The answer is C. To ensure the results are accurate.

is there multiple choice answers?

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.