Periodic Classification Of Elements

Element X forms a chloride with the formula XCl 2 , which is a solid with a high melting point. X would most likely be in the same group of the Periodic Table as

Four elements A, B, C, D are given With their electronic configuration.

A(2, 1) B(2, 8) C(2, 8,1) D(2, 8,8)

A) Which of the 2 elements belong to the same period

Four elements A, B, C, D are given With their electronic configuration.

A(2, 1) B(2, 8) C(2, 8,1) D(2, 8,8)

Which of the 2 elements belong to the samegroup.

Non metals are situated on the _____________ side of the periodic table.

Halogens belong to __________ group of periodic table

EKABORON , EKA ALUMINIUM AND EKA SILICON REPRESENT WHICH OF THE FOLLOWING SETS OF ELEMENTS?

Upto which element, the Law of Octaves was found applicable?

In Mendeleev’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the Periodic Table later?

An element ‘A’ belongs to the third period and group 16 of the Periodic Table. Find out the valency of A.

The elements A, B and C belong to groups 1, 14 and 17 respectively of the Periodic Table. Which two elements will form ionic compounds?

Where would you locate the element with electronic configuration 2, 8 in the Modern Periodic Table?

The arrangement of elements in the Modem Periodic Table is based on their

An atom of an element has the electronic confi-guration 2,8,2. To which group does it belong?

The properties of eka-aluminium predicted by Mendeleev are the same as the properties of later discovered element

At the time of Mendeleev, the number of elements known was