The element present in the IIIA group and 3 period in the periodic table is

The element placed in the group 13 and 3rd period of the periodic table is :

Name the element present in group IIA of thethird period of the periodic table.

The number of elements present in the fifth period of the periodic table is

How are the elements arranged into groups and periods in the modern periodic Table ? Elements in a group posses similar properties , but elements in a period do not show similarites in their properties . Why ?

How the properties of the elements vary in each group and each period of the periodic table ?

How many elements are present in IIIB group of the long form of the periodic table ?

Which Is true for an element R present in III A group of the periodic table