HARD
11th CBSE
IMPORTANT
Earn 100

Define Pauli exclusion principle. Why is it called exclusion principle ?

Important Questions on Structure of Atom

HARD
11th CBSE
IMPORTANT
Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>ADDITIONAL QUESTIONS>Q 35
In an atom, the first shell may contain up to 2 electrons, the second shell contain up to 8 electrons, the third shell contain up to 18 electrons and the fourth shell contains up to 32 electrons. Explain this arrangement in term of quantum numbers.
HARD
11th CBSE
IMPORTANT
Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>ADDITIONAL QUESTIONS>Q 36
How do 1s, 2s and 3s-orbitals differ from each other ?
HARD
11th CBSE
IMPORTANT
Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>ADDITIONAL QUESTIONS>Q 37
Draw probability distribution curves for 1s and 2s electrons. What observation are made from the graph ?
HARD
11th CBSE
IMPORTANT
Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>ADDITIONAL QUESTIONS>Q 38
Draw and discuss the shapes of d-orbitals.
HARD
11th CBSE
IMPORTANT
Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>ADDITIONAL QUESTIONS>Q 39
Name five d-orbitals. Give their shapes.
HARD
11th CBSE
IMPORTANT
Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>ADDITIONAL QUESTIONS>Q 40
State and explain 'aufbau principle'.
HARD
11th CBSE
IMPORTANT
Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>ADDITIONAL QUESTIONS>Q 41
State Hund's rule and its importance in filling the orbitals in various energy levels ; take atomic number 17 as an example.
HARD
11th CBSE
IMPORTANT
Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>ADDITIONAL QUESTIONS>Q 42
State Hund' s rule of maximum multiplicity. How is it used for the distribution of electrons in nitrogen (At. No. 7) and fluorine (At. No. 9) atoms ?