Test: Periodic Properties- 3 - Chemistry MCQ

Which of the following arrangements shows the correct order of decreasing paramagnetism:

Which of the following bond is strongest

The elements with the lowest atomic number that has a ground state electronic configuration of (n – 1) d⁶ns² is located in the:

The atomic numbers of the metallic and non-metallic elements which are liquid at room temperature respectively are:

In the periodic table, metallic character of the elements shows one of the following trend:

Which of the following represents the correct order of increasing first ionization enthalpy for Ca,Ba,S,Se andAr?

Transit ion metals are not characterized by:

Sodium generally does not shown oxidation state of +2, because of its:

Which of the following pairs of molecules have the almost identical bond dissociation energy:

According to modern periodic law the properties of elements repeat at regular intervals when the elements are arranged in order of:

Consider the following four elements, which are represented according to long form of periodic table.

Here W, Y and Z are left, up and right elements with respect to the element ‘X’ and ‘X’ belongs to 16^th group and 3^rd period. Then according to given informat ion the incorrect statement regarding given elements is:

In the fourth period of the periodic table, how many elements have one or more 4d electrons:

Assuming that elements are formed to complete the seventh period, what would be the atomic number of the alkaline earth metal of the eighth period:

Which of the following represents an excited state of an atom:

Choose the correct statement regarding transition elements:

Which one of the following is a different pair:

Zn and Cd metals do not show variable valency because:

A compound contains three elements A, B and C, if the oxidation number of A = +2, B = +5 and C = –2, the possible formula of the compound is:

The period number and group number of “Tantalum” (Z = 73) are respectively:

Which of the following pair of elements belongs to the same period?

Consider the following electronic configuration of an element (P):

[Xe] 4f¹⁴5d¹6s²

The correct statement about element ‘P’ is:

Which of the following metal is highest electropositive (metallic) in nature:

Which of the following species must have maximum number of electrons in ‘dxy’ orbital:

Which property decreases from left to right across the periodic table and increases from top to bottom:

(I) Atomic radius
(II) Electronegativity
(III) Ionization energy
(IV) Metallic character

Consider the following information about element P and Q:

Then formula of the compound formed by P and Q element is:

Which electronic configuration must represent an atom in an excited state:

Among NaF , NaCl , NaBr and Nal , the NaF has highest melting point because