18 groups
There are NO vertical ROWS, because rows run horizontally, and COLUMNS run vertically. There are 18 vertical columns in the periodic table.
The vertical columns in a periodic table are called groups, and the horizontal rows are called periods.
rows. the vertical columns are called periods
Groups or families are the vertical columns on the periodic table. Periods are the horizontal rows on the Periodic Table.
columns
The horizontal rows on the periodic table are called periods, while the vertical columns are called groups or families.
False; That would be called groups. Periods are horiztonal rows.
The vertical rows on the periodic table are called groups.The vertical rows are called periods and the horizontal columns are called groups.
Families (or groups) are the vertical columns of the periodic table. Period is horizontal rows.
Groups are the vertical columns. Periods are the horizontal rows in the periodic table.
The vertical columns in a periodic table are called Groups.
The rows (Horizontal) are called Periods and the Columms (Vertical) are called Groups.