2.39 | Using the periodic table, identify the lightest member of each of the following groups

Using the periodic table, identify the lightest member of each of the following groups: (a) noble gases (b) alkaline earth metals (c) alkali metals (d) chalcogens OpenStax™ is a registered trademark, which was not involved in the production of, and does not endorse, this product. If you don&have the OpenStax™ "Chemistry: Atoms First" textbook, here is a link in which you can download it for FREE! SUBSCRIBE if you&like to see more solutions for your textbook! Want us as your private tutor? Get started with your FREE initial assessment! #OpenStaxChemistry