Two students conduct the same experiment, but they get different results. What should the students do next?A. The students should check their procedure and tools for sources of error. B. Both students should throw out their data and start over. C. The students should compare data with other students and then use the data from the student who was closest to the rest of the class. D. The students should find the average of each data set and each report the average data.

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false