EASY

Earn 100

Why there are exceptions in writing the electronic configuration of Chromium and Copper?

Important Questions on Structure of Atom

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

How many electrons can fit in each orbital for which

n = 3

and

l = 1

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Which is the correct order of increasing energy of the listed orbitals in the atom of titanium?

(At. No. Z =

22

)

MEDIUM

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Which statement is incorrect for the periodic classification of elements?

MEDIUM

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The electronic configuration which obeys Hund's rule for the ground state of carbon atom is

MEDIUM

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

If the principal quantum number

n = 6,

the correct sequence of filling of electrons will be:

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The maximum number of electrons that can be filled in the shell with the principal quantum number

n = 4

MEDIUM

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

G d (64)

has __ unpaired electrons with sum of its spin as __.

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The number of unpaired electrons in

{Ni}^{2 +}

(atomic number

= 28

) are

MEDIUM

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The number of

d

-electrons in

{Fe}^{2 +} (Z = 26)

is not equal to the number of electrons in which one of the following?

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The number of valence electrons in an atom with electronic configuration

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Aqueous solution of which of the following salts will not contain ions with the electronic configuration

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6}

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The group number, number of valence electrons, and valency of an element with atomic number

15,

respectively, are:

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The total number of orbitals associated with the principal quantum number

5

is:

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The number of completely filled shells for the element

_{16} S^{32}

MEDIUM

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

4 d, 5 p, 5 f

and

6 p

orbitals are arranged in the order of decreasing energy. The correct option is:

MEDIUM

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Energy associated with the first orbit of

{He}^{+}

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The orbital nearest to the nucleus is

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The element which readily forms an ionic bond has the electronic configuration

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The element with

Z = 120

(not yet discovered) will be a/an

MEDIUM

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Which one of the following statements is wrong?

Why there are exceptions in writing the electronic configuration of Chromium and Copper?

Important Questions on Structure of Atom

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