Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.63

HARD

11th CBSE

IMPORTANT

Earn 100

The bromine atom possesses $35$ electrons. It contains $6$ electrons in $2 p$ orbital, $6$ electrons in $3 p$ orbital and $5$ electrons in $4 p$ orbital. Which of these electron experiences the lowest effective nuclear charge ?

Important Questions on Structure of Atom

HARD

11th CBSE

IMPORTANT

Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.64

Among the following pairs of orbitals which orbital will experience the larger effective nuclear charge ?
(i)

2 s

and

3 s

,
(ii)

4 d

and

4 f

,
(iii)

3 d

and

3 p

HARD

11th CBSE

IMPORTANT

Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.65

The unpaired electrons in

Al

and

Si

are present in

3 p

orbital. Which electrons will experience more effective nuclear charge from the nucleus ?

HARD

11th CBSE

IMPORTANT

Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.66

Indicate the number of unpaired electrons in: (a) $P$ , (b) $Si$ , (c) $Cr$ , (d) $Fe$ , (e) and $Kr$ .

MEDIUM

11th CBSE

IMPORTANT

Textbook for Class XI Chemistry Part I>Chapter 2 - Structure of Atom>EXERCISES>Q 2.67

(a) How many subshells are associated with

n = 4

? (b) How many electrons will be present in the subshells having

m_{s}

value of

- 1 / 2

for

n = 4

?