lol i just forgot
Yes, elements with same properties are found in same group. They have same chemical properties.
Elements with same properties are found in same group.They are also called families.
Elements are organised in terms of properties in same column. Properties are found to be periodic .
Yes. Its true that elements with similar properties are found in same group.
A list of elements, with some of their properties.
No, but elements in the same vertical columns have similar properties.
GROUPS! :]
similar properties
100 exactly
Dmitri Mendeleev
It is about half
The gaps were left for elements which were not discovered at that time. The properties which were estimated for the elements at that time was same as found later in those elements.