- 1(current)
Q. No.The number of protons, neutrons and electrons in \( _{71}^{175}Lu\) respectively, are:
1. 104, 71 and 71
2. 71, 71 and 104
3. 175, 104 and 71
4. 71, 104 and 71
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following conclusions could not be derived from Rutherford's -particle scattering experiment?
| 1. | Most of the space in the atom is empty. |
| 2. | The radius of the atom is about 10-10 m while that of a nucleus is 10–15 m. |
| 3. | Electrons move in circular path of fixed energy called orbits. |
| 4. | Electrons and the nucleus are held together by electrostatic forces of attraction. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statement is not correct about the characteristics of cathode rays?
| 1. | They start from the cathode and move towards the anode |
| 2. | They travel in straight line in the absence of an external electrical or magnetic field |
| 3. | Characteristics of cathode rays do not depend upon the material of electrodes in cathode ray tube |
| 4. | Characteristics of cathode rays depend upon the nature of gas present in the cathode ray tube |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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