The element or elements whose position is anomalous in the periodic table is

Which medals were awarded to Newlands and Seaborg for their work?

Match the following and select the correct option.

List-$I$	List-$II$
$(1)$ Lothar Meyer	$(A)$ First to present a periodic table showing correct arrangement up to Calcium.
$(2)$ $A$.$E$.$B$. de Chancourtois	$(B)$ Arranged elements in horizontal and vertical rows based on atomic weight.
$(3)$ Newlands	$(C)$ Discovered the element with atomic number $101$.
$(4)$ Seaborg	$(D)$ Suggested that arrangement based on atomic weight is an important concept in the periodic table.
	$(E)$ Presented the first possible periodic table.
	$(F)$ Arranged elements into groups of three.
	$(G)$ Law of Octaves.

The modern periodic table,based on the experiment of atomic number which highlights the significance of atomic number,is associated with:

The law of triads is applicable to a group of

Fill in the blanks given below:
$(i)$ The first scientist to think about the properties of elements was ......... .
$(ii)$ The relationship of properties of elements suggested by Dobereiner is known as ........... .
$(iii)$ The Law of Octaves was proposed by the chemist ......... .
$(iv)$ The first periodic table was constructed by .......... and .......... .