MORDERN PHYSICS QUSTION
Question 1. ________ is the smallest part of an element that retain it properties when it take part in chemical reaction?
- Atom
- Element
- Proton
- Electron
- Neutron
Question 2. What is name of orbit in the outer part of an atom?
- Valence
- Valence Shell
- Orbital
- Electron Orbital
- Atomic Orbital
Question 3. The minimum electron charge is donated by____________?
- e= 1.6 x 10-19C
- C = 1.6 x 10-19C
- E= 1.6 x 10-19c
- h=6.6 x 10-4-34js
- none of the above
Question 4. What is the radius of atomic nucleus?
- 0 x 10-16
- 10-16m
- 200cm
- 10-16cm
- 023m
Question 5. Charge carry by electron and proton are equal and?
- Parallel
- Positive
- Opposite
- Spherical
- Singly charged
Question 6. According to their mass and presented as spectrum as measured using mass spectrometer, one version of this device is known as?
- Spectrophotometry
- Colorimeter
- Bean spectrophotometer
- Bainbridge mass spectrometer
- Black body radiant
Question 7. The charge particles from the velocity selector enter________?
- Cathode ray
- Spectrum line
- Second magnetic field
- None of the above
- All of the above
Question 8. _________ Field ions move in semicircles of radius before striking a ___________?
- Atomic and Nucleus
- Electron and Proton
- Second magnetic and photographic plate
- Wave function and frequency
- Electric and magnetic field
Question 9. _______ is an element with different mass number but the same proton number?
- Proton and electron
- Electron and Neutron
- Proton and neutron
- Isotope
- Isomorphism
Question 10. Any naturally occurring sample of chlorine contains 35CL and 37CL in proportion of 75.53%: 24.47% for sample of 100 atoms of 100 atom of chlorine, determine the average mass of chlorine?
- 50
- 49
- 75
- 50
- 75
That is the end of this section
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