EASY

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The metallic radius is half the internuclear distance separating the non-metal cores in the metallic crystal.

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Important Questions on Periodicity

EASY

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

The correct order of ionic size of

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

and

O^{2 -}

is :

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

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

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

The correct order of the ionic radii of

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

and

{Al}^{3 +}

is :

EASY

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

The correct order of atomic radii is:

EASY

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

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

EASY

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

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

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

The ionic radii of

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

and

{Mg}^{2 +}

are in the order:

EASY

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

The correct order of energy of

2 s

-orbitals in

H

Li

Na

and

K

, is

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

Which one of the following has largest ionic radius ?

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

The size of the iso-electronic species

C l^{-}

, Ar and

C a^{2 +}

is affected by:

EASY

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall 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>Periodicity>Atomic Radii, Ionic Radii and Vanderwall 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>Periodicity>Atomic Radii, Ionic Radii and Vanderwall 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>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

The effective nuclear charge for an electron in

n = 2

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

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall 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>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

Which of the following is the correct order of radius?

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

The ionic radii of

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

follow the order

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

In comparison to boron, beryllium has:

EASY

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

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

2.60

. What is the atomic number of the element?

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Atomic Radii, Ionic Radii and Vanderwall Radii

The ionic radii

(in Å)

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

and

F^{-}

are respectively:

The metallic radius is half the internuclear distance separating the non-metal cores in the metallic crystal.

Important Questions on Periodicity

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