List of top Chemistry Questions on Modern Periodic Law And The Present Form Of The Periodic Table

In $4^{\text{th}}$ period of periodic table the elements with the largest and smallest size respectively is :

Select the option of the correct property Paramagnetic & Diamagnetic \([Ni(CO_4)],[Ni(Cl_4)]^{-2}\)

Color of \(Pbl_2\)

Magnetic behavior of \(Ni^{2+}\) with strong ligand

What is the group number of unununnium?

Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI.
A) Al³⁺
B) Cu²⁺
C) Ba²⁺
D) Co²⁺
E) Mg²⁺
Choose the correct answer from the options given below

Match List I with List II

List-I (Quantum Number)		List-II  (Information provided)
(A)	mI	(I)	Shape of orbital
(B)	ms	(II)	Size of orbital
(C)	I	(III)	Orientation of orbital
(D)	n	(IV)	Orientation of spin of electron

Choose the correct answer from the options given below:

Arrange the following elements in increasing order of electronegativity:
N, O, F, C, Si
Choose the correct answer from the options given below:

The IUPAC symbol for the element with atomic number $119$ would be :

The $71^{st}$ electron of an element $X$ with an atomic number of $71$ enters into the orbital :

Consider the following species: N^3- , O^2-, F^-, Na⁺, Mg²⁺ and Al³⁺ 

1. What is common in them? 
2. Arrange them in the order of increasing ionic radii.

In the modern periodic table, the period indicates the value of:

Which of the following statements related to the modern periodic table is incorrect?

What is the basic difference in approach between the Mendeleev's Periodic Law and the Modern Periodic Law?