| 1 |
Rutherford's model fo atom failed because |
- A. The atom did not have a nucleus and electrons.
- B. It did not account for the attraction between protons and neutrons.
- C. It did not account for the stability of the atom
- D. Their is actually no space between the nucleus and the electrons.
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| 2 |
Quantum number values for 3p orbitals are. |
- A. n = 0, l = 3
- B. n = 3 , l = 1
- C. n = 2, l = 1
- D. n = 2 , l = 3
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| 3 |
Hund's rule state that when electrons enter to the same sub levels they are. |
- A. Singly occupied with same spin
- B. Doubly occupy with same spin
- C. Singly occupied with different spin
- D. Doubly occupied with different spin
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| 4 |
Splitting of spectral lines when atoms are subjected to strong electric field is called. |
- A. Zeeman effect
- B. Stark effect
- C. Photoelectric effect
- D. Compton effect
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| 5 |
In the ground state of an atom, the electrons is present. |
- A. In the nucleus
- B. In the second shell
- C. Nearest to the nucleus
- D. Farthest form the nucleus
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| 6 |
Node is a surface on which probability of finding electron is |
- A. Zero
- B. More than 95%
- C. 50%
- D. Infinite
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| 7 |
An atomic orbital has l =1 , m =+1, 0, -1, n = 3 than which one of the following atomic orbital has such values. |
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| 8 |
De Broglie equation treats electron to be. |
- A. A particle
- B. Wave
- C. Both particle and wave
- D. None of these
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| 9 |
If uncertainty position of an electron is zero, the uncertainty in its momentum would be |
- A. Zero
- B. Infinite
- C. Both a and b
- D. None of these
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| 10 |
Which one of the following has the same number of electrons as an alpha particle. |
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