_____________________ go across the periodic table in rows.Group of answer choicesgroups/familesperiodsgas familyimposter families

How many total families are on the periodic table?

The periodic table is organized into rows, known as periods, and columns, known as groups or families. Elements within the same family on the periodic table A. are alphabetically arranged. B. share a similar number of protons. C. are very different from one another. D. share similar chemical properties.

What is the most reactive family on the periodic table?Group of answer choicesnoble gaseshalogensalkali metalsalkaline earth metals

A row on the periodic table

Which of the following elements is not in Group 1 of the periodic table?Group of answer choicesLithiumpotassiumHeliumHydrogen