The periodic table of the elements lists all of the chemical elements that have been found or created.
Grouped in seven horizontal periods are listed in order of their atomic numbers (lanthanum, 57, to lutetium, 71) and actinoids (actinium, 89, to lawrencium, 103) highlighted.
The contemporary periodic table has 18 vertical columns called groups and 7 horizontal rows called periods.
.When all elements are organised in order of increasing atomic numbers at regular intervals, the properties of the elements are reproduced according to current periodic law.
Final Answer :
There are 18 vertical columns known as groups and seven horizontal rows known as periods in the current periodic table.
