________________________ are the least reactive family of elements.

What are the horizontal (from left to right) parts of the periodic table called?

What is true about elements that are in the same column (group/family)

What family of elements is in the right-most column of the periodic table?

The vertical (top to bottom) parts of the periodic table are called "groups" or ___.

Which group of elements has a stable number of electrons in their outer energy level?

Which one of the following would be a chemical property of a sample of neon gas?

Which of the following is accurate in describing the placement and classification of iodine?

Which of the following statements accurately describe all halogen elements? Mark all that apply.