Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.23

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Write the electronic configuration of the following ion:

$H^{-}$

Important Questions on Structure of Atom

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Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.23

What are the atomic numbers of elements whose outermost electrons are represented by

(a) $3 s^{1}$ (b) $2 p^{3}$ and (c) $3 p^{5}$ ?

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Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.23

Which atoms are indicated by the following configurations?
(a)

[He] 2 s^{1}

(b)

[Ne] 3 s^{2} 3 p^{3}

(c)

[Ar] 4 s^{2} 3 d^{1}

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Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.24

What is the lowest value of

n

that allows

g

orbitals to exist?

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Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.25

An electron is in one of the

3 d

orbitals. Give the possible values of

n, l

and

m_{l}

for this electron.

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Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.26

An atom of an element contains $29$ electrons and $35$ neutrons. Deduce

(i) The number of protons and
(ii) The electronic configuration of the element.

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Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.27

Give the number of electrons in the species,

H_{2}^{+}

,

H_{2}

and

O_{2}^{+}

.

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Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.28

An atomic orbital has

n = 3

. What are the possible values of

l

and

m_{l}

?

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Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.28

List the quantum numbers

(m_{l}

and

l)

of electrons for

3 d

orbital.