The location and energy of an electron in an atom can be specified by

A. Atomic number

B. Atomic mass

C. Quantum numbers

D. None of these

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  1. The metal that is present in Photo Films is
  2. Which of the following elements is obtained from sea weeds ?
  3. The metallic constituents of hard water are
  4. The marine animal called dugong which is vulnerable to extinction is a/an
  5. According to Daltons atomic theory the smallest particle which can exist independently is
  6. Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
  7. Cell membrane is
  8. In an atomic nucleus, neutrons and protons are held together by
  9. Which of the following is in liquid form at room temperature ?
  10. When a gas is turned into a liquid, the process is called
  11. The element present in the largest amount in rocks and minerals is
  12. The property of a substance to absorb moisture from the air on exposure is called
  13. The most important ore of Aluminium is
  14. Bromine is
  15. Glass is made from the mixture of
  16. Nitrification means
  17. The Panda belongs to the same family as that of
  18. The removal of top soil by water or wind is called
  19. Which of the following elements is non-radioactive?
  20. Rust is
  21. The intencity of Earthquakes is measured on
  22. Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
  23. Which of the following parts of the sun is easily visible only during a total solar eclipse?
  24. The major ingredient of leather is
  25. Liquefied Petroleum gas (LPG) consists of mainly
  26. Polythene is industrially prepared by the polymerisation of
  27. The speed of light with the rise in the temperature of the medium
  28. The chemial name of Uria is
  29. Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
  30. The hardest substance available on earth is