EASY

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Some periodic properties are given below. The number of properties that shows increase in general periodic trend down a group is_________.

$i$ . Atomic radius
$ii$ . Ionic radius
$iii$ . Ionization enthalpy

$iv$ . Electron gain enthalpy
$v$ . Electronegativity

$vi$ . Metallic character
$vii$ . Nonmetallic character
$viii$ . Valency

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Important Questions on Classification of Elements and Periodicity in Properties

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

The correct order of the ionic radii of

O^{2 -}, N^{3 -}, F^{-}, {Mg}^{2 +}, {Na}^{+}

and

{Al}^{3 +}

is :

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

In comparison to boron, beryllium has:

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

The ionic radii of

O^{2 -}, F^{-}, {Na}^{+}

and

{Mg}^{2 +}

are in the order:

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

The effective nuclear charge for an electron in

n = 2

shell in a fluorine atom will be, (calculated according to Slater's rules):

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

The effective nuclear charge of an element with three valence electrons is

2.60

. What is the atomic number of the element?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

Which of the following arrangements is correct regarding the three types of radii for an atom?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

Which of the following orders of ionic radii is correctly represented?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

In the elements of the second period of the modern periodic table, the decrease in atomic radius

(pm)

is maximum with respect to

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

Among the element Li, N, C and Be, one with the largest atomic radius is

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

Which one of the following has largest ionic radius ?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

What is the correct order of atomic radii of the following atoms?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

The ionic radii

(in Å)

N^{3 -}, O^{2 -}

and

F^{-}

are respectively:

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

Covalent bond length of a chlorine molecule is

1.98 \overset{o}{A}

. Covalent radius (in

\overset{o}{A}

) of chlorine atom is _________

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

The correct order of ionic size of

N^{3 -}, {Na}^{+}, F^{-}, {Mg}^{2 +}

and

O^{2 -}

is :

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

Among the isoelectronic ions

(O^{2 -}, N^{3 -}, {Mg}^{2 +}, {Na}^{+}),

the ions with the least and the highest ionic radius are, respectively

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

The ionic radii of

{Na}^{+}, F^{-}, O^{2 -}, N^{3 -}

follow the order

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

The correct order of energy of

2 s

-orbitals in

H

Li

Na

and

K

, is

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

The size of the iso-electronic species

C l^{-}

, Ar and

C a^{2 +}

is affected by:

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

The species

A r, K^{+}

and

C a^{2 +}

contain the same number of electrons. In which order do their radii increase?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Atomic Radii, Ionic Radii and Van der Waals Radii

The correct order of atomic radii is:

Important Questions on Classification of Elements and Periodicity in Properties

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