No items in cart
Find answers related to your class, subject, and topic.
In his periodic chart, Mendeleev organised the elements by atomic
weight or mass. In order of increasing atomic weight, he divided the elements
into periods and groups. He grouped elements that have comparable qualities
together. He did not, however, keep this arrangement for long. He discovered
that if the elements were ordered strictly in order of increasing atomic
weights, several of them would not fit
this this classification scheme.
As a result, in certain circumstances, he neglected the atomic
weight order. The atomic weight of iodine, for example, is smaller than that of
tellurium. Despite this, Mendeleev ranked tellurium (Group VI) ahead of iodine
(Group VII) because the characteristics of iodine are so similar to fluorine,
chlorine, and bromine.
Hi 👋
How can we help you?