Question

(Science DUE 6:30 AM!!)

Which of the following is a true statement?

gases form horizontal rows, categories form vertical columns

periods for horizontal rows, groups form vertical columns

groups for horizontal rows, periods for vertical columns

categories form horizontal rows, gases form vertical columns

Answer 1

The answer: Periods form horizontal rows, groups form vertical columns

Step-by-step explanation:
The horizontal rows on the periodic table are called periods, while the verticals columns are called groups. Elements that are in the same group have similar properties. For example Group 1 is called the alkali metals. These are all soft, reactive metals.