Activity In this activity, you will examine several different pictures of scientists. The scientists in these pictures are not exhibiting safe lab practices. For each picture, answer these questions:

What are the scientists doing incorrectly?
What could they do to make their work in the lab safer?
Why is it important to follow these procedures?

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.