Intermediate First Year Chemistry>Chapter 1 - Atomic Structure>QUESTIONS>Q 19

EASY

11th Telangana Board

IMPORTANT

Earn 100

To which element does the following electronic configuration correspond, $1 s^{2} 2 s^{2} 2 p^{2}$ ?

Important Questions on Atomic Structure

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 1 - Atomic Structure>QUESTIONS>Q 20

Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelength

4000 Å

. What is the threshold frequency (

v_{0}

)?

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 1 - Atomic Structure>QUESTIONS>Q 21

Explain Pauli's exclusion principle.

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 1 - Atomic Structure>QUESTIONS>Q 22

What is aufbau principle?

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 1 - Atomic Structure>QUESTIONS>Q 23

What is Hund's rule?

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 1 - Atomic Structure>QUESTIONS>Q 24

Explain Heisenberg's uncertainty principle?

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 1 - Atomic Structure>QUESTIONS>Q 25

What is the wavelength of an electron moving with a velocity of

2.0 \times 10^{7} {ms}^{- 1}

?

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 1 - Atomic Structure>QUESTIONS>Q 26

An atomic orbital has

n = 2

, what are the possible values of

l

and

m_{l}

?

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 1 - Atomic Structure>QUESTIONS>Q 27

Which of the following orbitals are possible?

2 s, 1 p, 3 f, 2 p

.