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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
881

A particle that contains 8 proton, 9 neutrons and 7 electrons could be written as?

  • A. O
  • B. O+
  • C. N
  • D. O-
View Answer & Discuss (32) JAMB 1995
882
In the oil drop experiment, Millikan determined the?
  • A. charge to mass ratio of the electron
  • B. mass of the electron
  • C. charge of the electron
  • D. mass of the proton
View Answer & Discuss (2) JAMB 1995
883
The ability of ionic solids is generally due to the?
  • A. negative electron affinity of most atoms
  • B. crystal lattice forces
  • C. electron pair sharing
  • D. positive ionization potentials
View Answer & Discuss (7) JAMB 1995
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884

Which of the following statements is FALSE about isotopes of the same element?

  • A. They have the same number of electrons in their outermost shells
  • B. They have different atomic masses
  • C. They have the same atomic number and the number of electrons
  • D. They have the same atomic number but different number of electrons
View Answer & Discuss (7) JAMB 1995
885
Helium is often used in observation balloons because it is?
  • A. light and combustible
  • B. light and non-combustible
  • C. heavy and combustible
  • D. heavy and non-combustible
View Answer & Discuss (3) JAMB 1995
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