Question

question 7 1 pts the periodic table can be color - coded to classify the elements as __, , or . permeable, semipermeable, nonpremable metals, metalloids, nonmetals precious, semiprecious, nonprecious reactive, semireactive, nonreactive question 8 1 pts the elements can be further classified as main - group elements in columns labelled and transition metals in the center columns labelled __. note: different periodic tables may have different labeling. a - b and e - j; c - d 1 - 2 and 13 - 18; 3 - 12 10 - 20 and 130 - 180; 30 - 120 left and center; top and bottom

Explanation:

For Question 7, the periodic table commonly classifies elements as metals, metalloids, and non - metals. For Question 8, main - group elements are in columns 1 - 2 and 13 - 18, and transition metals are in columns 3 - 12.

Answer:

Question 7: B. metals, metalloids, nonmetals
Question 8: B. 1 - 2 and 13 - 18; 3 - 12