4. Atoms and Elements

Which element is most likely to have chemical properties similar to lithium (Li) based on periodic table group trends?

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

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

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

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

In the modern periodic table, how many vertical columns (groups) are there?

Which group on the periodic table contains the most reactive metals?

Which element is expected to have chemical properties most similar to beryllium because it is in the same group (alkaline earth metals) on the periodic table?

Which of the following elements is classified as a noble gas on the periodic table?

Which element in Group 2 (alkaline earth metals) is the most reactive under typical conditions?

Which of the following elements is a Group 5A (Group 15) element on the periodic table?

In the periodic table, what do we call the vertical columns?

Periodic Table: Group Names — Which element is most similar to calcium (Ca) in its chemical properties?

Which group on the periodic table is generally the least reactive?

Which type of element is least likely to react with other elements under normal conditions?