You may use table navigation commands for the screen reader of your choice. The Periodic Table of Elements ... Row 9 is blank, and the content in the last two rows begins in column 3. The column ...

Mrs Roberts: Well, elements that have similar properties to each other are put into vertical columns called groups. Now, the table is called the periodic table because the elements with similar ...

This year we celebrate the 150 th anniversary of Mendeleev’s achievement in formulating the structure of the periodic table that we ... Mendeleev’s table listed elements in rows or columns in order of ...