Question

UNIT: 2
CHAPTER: STRUCTURE OF ATOM! (WORKSHEET-1)
1) Which one can explain the presence of 3 unpaired electrons in nitrogen-a) Pauli's exclusion principle; b) Aufbau princ'ole: c)
Hund's rule; d) Heisenberg's uncertainty principle.
3) What is proved by the a-particle scattering of Rutherford?
4) Velocity of e revolving in first orbit is
times that ofe revolving in second orbit.
5) What is the relation between wave number and frequency?
6) What is fine structure? Write Sommerfeld's theory to support it.
7) Write all the 4 quantum numbers for 3d es.
8) Calculate radius of first Bohr orbit of Het
9) The energy subshell in which e only absorbs photon but does not emit is-1) 1s; II) 25; c) 2p; d) 3d.
10) 1) Write two major drawbacks of Rutherford's atomic model. II) Describe the postulates of Bohr's atomic model​

Answer 1

Answer:

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