What is the solution to the problem rounded to the correct number of significant figures? 12.77 + 0.8 = ? a. 14 b. 13.6 c. 13.57 d. 10

a

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.