4. Atoms and Elements

Argon (Ar) belongs to which group of the periodic table?

Which element listed is an alkali metal and therefore the most reactive metal among the choices?

In the periodic table, each horizontal row is called a:

In the periodic table, the vertical columns are called which of the following?

Which group of elements on the periodic table is known for not reacting (or reacting only very rarely) with other elements under normal conditions?

Which element is most likely to have chemical properties similar to oxygen because it is in the same group on the periodic table?

Which periodic table group is generally the most reactive (especially among metals) under standard conditions?

Which element is a member of the halogen family (Group 17) on the periodic table?

Which element is most likely to have chemical properties similar to sulfur because it is in the same group of the periodic table?

In the periodic table, what best defines a “family” (group)?

Which element has properties most similar to neon (Ne) based on periodic table group names?

In the periodic table, what are the horizontal rows called?

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

In the periodic table, what is a horizontal row called?

Which of the following elements is an alkali metal (Group 1) on the periodic table?