A checkerboard
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.
They are called periods because after each period in the following period elements are ordered according to their properties at the intersection with vertical columns (groups) and these properties are periodically reproduced.
The columns are groups or families, and the rows are periods.
The vertical columns are called groups and the horizontal rows are called periods. Note: It should not be vertical rows or horizontal columns
There are eight rows and eight columns .
The chekerboard and chessboard are 8 rows long, 8 columns wide, and marked off in 64 squares.
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 rows of the Periodic Table are called groups or families and the rows are called periods
Groups
A checkerboard, and chessboard, consists of 8 rows of 8 columns each for a total of 64 squares.
A horizontal row is called a period .
A collection of data organized into columns and rows generally is called a TABLE.
They are called periods because after each period in the following period elements are ordered according to their properties at the intersection with vertical columns (groups) and these properties are periodically reproduced.
The columns are called groups (or, sometimes, families). The rows are called periods.
The columns are groups or families, and the rows are periods.