group
rows. the vertical columns are called periods
The horizontal rows are periods on periodic table. There are 7 horizontal rows in modern periodic table.
The rows in the periodic table are called periods. There are 7 periods in periodic table.
periods are the rows and families are the columns
It is true that periodic table is divided into rows and columns. The rows are called periods and columns are called groups.
rows. the vertical columns are called periods
Horizontal rows on the Periodic Table of Chemical Elements are called periods.
The horizontal rows are periods on periodic table. There are 7 horizontal rows in modern periodic table.
The rows in the periodic table are called periods. There are 7 periods in periodic table.
The horizontal rows on the periodic table are called periods.
the rows of the Periodic Table are called groups or families and the rows are called periods
Horizontal rows are called groups. Groups are formed according to the atomic number.
periods are the rows and families are the columns
It is true that periodic table is divided into rows and columns. The rows are called periods and columns are called groups.
The vertical columns in a periodic table are called groups, and the horizontal rows are called periods.
The rows are also called periods.
The horizontal rows on the Periodic Table are called periods.