| 1 |
The lowest energy level is |
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| 2 |
L shell can accommodate ________________ electrons. |
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| 3 |
The p subshell has:<br> |
- A. one orbital <br>
- B. two orbitals <br>
- C. three orbitals <br>
- D. four orbitals<br>
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| 4 |
Who discovered the proton?<br> |
- A. Goldstein<br>
- B. J.J Thomson<br>
- C. Neil Bohr <br>
- D. Ruther Ford<br>
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| 5 |
The isotopes of an element have different number of |
- A. Electrons
- B. Protons
- C. Neutrons
- D. Protons & Neutrons
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| 6 |
Which one of the following is the most penetrating?<br> |
- A. protons <br>
- B. electrons <br>
- C. neutrons<br>
- D. alpha paticles<br>
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| 7 |
The concept of orbit was used by:<br> |
- A. J.J Thomson<br>
- B. Rutherford<br>
- C. Bohr <br>
- D. Planck <br>
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| 8 |
The boiling point of H2O is: |
- A. 100
- B. 12
- C. 1.105
- D. 9
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| 9 |
First energy level is denoted by:<br> |
- A. K
- B. L <br>
- C. M <br>
- D. N
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| 10 |
In ________________ Bohr considered hydrogen atom for his model . |
- A. 1913
- B. 1916
- C. 1917
- D. 1918
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