4. Atoms and Elements

In the periodic table, the vertical columns are called what?

Which periodic table group does argon (Ar) belong to?

In the periodic table, what is the term for a horizontal row?

Which two groups of elements are generally considered the most reactive on the periodic table?

An element described as having “halogen characteristics” most likely belongs to which group on the periodic table?

In the periodic table, Group 7 (the halogens) becomes less reactive down the group. Which element is least reactive in Group 7?

To which element group does argon belong?

Which family (group) on the periodic table is generally considered the most reactive overall?

Which element is most similar to sulfur based on periodic table group (family) membership and typical valence electron configuration?

In the periodic table, the vertical columns are known as what?

Which element is found in period 3, group 2 of the periodic table?

What are the horizontal rows on the periodic table called?

Which element would be expected to behave most like magnesium based on periodic table group trends?

In the periodic table, what is meant by a “family” (also called a group)?

In the periodic table, the vertical columns are called what?