EASY
11th Telangana Board
IMPORTANT
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To which element does the following electronic configuration correspond, 1s2 2s2 2p2?

Important Questions on Atomic Structure

HARD
11th Telangana Board
IMPORTANT
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 (v0)?
MEDIUM
11th Telangana Board
IMPORTANT
Explain Pauli's exclusion principle.
MEDIUM
11th Telangana Board
IMPORTANT
What is aufbau principle?
MEDIUM
11th Telangana Board
IMPORTANT
What is Hund's rule?
MEDIUM
11th Telangana Board
IMPORTANT
Explain Heisenberg's uncertainty principle?
MEDIUM
11th Telangana Board
IMPORTANT
What is the wavelength of an electron moving with a velocity of 2.0×107 ms-1?
MEDIUM
11th Telangana Board
IMPORTANT
An atomic orbital has n=2, what are the possible values of l and ml?
MEDIUM
11th Telangana Board
IMPORTANT
Which of the following orbitals are possible? 2s, 1p, 3f, 2p.