Pauli's Exclusion Principle

Q.

No two electrons in an atom can have same set of four quantum numbers.

1. True

2. False

Q.

If carbon atom has electronic configuration 1$s^6$, it would have energy lower than that of the normal ground state configuration 1$s^2$ 2$s^2$ 2$p^2$. Yet 1$s^6$ is not observed because it violates

1. Heisenberg's Uncertainty principle

2. Hund's rule

3. Pauli exclusion principle

4. Aufbau Principle

Q. What are the limitations of quantum mechanical model of atom? Explain about g orbital

Q. Any '$p$' orbital can accommodate upto:

1. Four electrons
2. Six electrons
3. Two electrons with parallel spins
4. Two electrons with opposite spins

Q. A '$d$' subshell containing four unpaired electrons can exchange:

1. Four times
2. Three times
3. Sixteen times
4. Six times

Q. The orbital diagram in which both the Pauli’s exclusion principle and Hund’s rule are violated is:

1. 
2. 
3. 
4. 

Q.

Electronic configuration of $H^{-}$ is

1. 1s⁰

2. 1s²

3. 1s¹

4. 1s¹2s¹

Q. explain the anomalous electronic configuration of chromium(z=24) and copper (z=29)​

Q. The orbital diagram in which both Pauli's Exclusion Principle as well as Hund's Rule are violated is:

1. 
   
2. 
3. 
4. 

Q. What are the limitations of quantum mechanical model of atom? Explain about g orbital

Q. The orbital diagram in which both the Pauli’s exclusion principle and Hund’s rule are violated is:

1. 
2. 
3. 
4. 

Q.

Electronic configuration of $H^{-}$ is

1. $1s^0$

2. $1s^1$

3. $1s^2$

4. $1s^{1}2s^1$

Q. Ground state electronic configuration of P atom can be represented as

1. 
2. 
3. 
4. 

Q. Which of the following violates Hund's Rule?

1. 
2. 
3. 
4. 

Q. Consider two cations $X$ and $Y$ which have 8 and 18 electrons respectively in their outermost shell (both belong to $3d-$ series). Select the correct statement(s) among the following.

1. Both the cations have 8 electrons in their penultimate shell.
2. Difference between the total number of electrons of $X$ and $Y$ is 10.
3. Cation $Y$ may be of element $Ni$.
4. Cation $X$ may be of element $Sc$.

Q. In an atom, the total number of electrons having quantum numbers $n=4,|m_l|=1$ and $m_s=-\frac{1}{2}$ is :

1. 6
2. 12
3. 13
4. 10