what are the vertical (up and down) columns on the periodic table called?\nrows\nblocks\ngroups or…

what are the vertical (up and down) columns on the periodic table called?\nrows\nblocks\ngroups or families\nperiods\nquestion 4 (1 point)\nlisten\nwhich element is a nonmetal?\ngold\noxygen\niron\nsilver
Answer
Brief Explanations:
In the periodic table, vertical columns are called groups or families. They contain elements with similar chemical properties due to having the same number of valence - electrons. Non - metals are elements that lack metallic properties. Gold, iron, and silver are metals, while oxygen is a non - metal.
Answer:
- C. Groups or families
- B. Oxygen