The atomic weight of elements are usually fractional because

Nuclear Engineering Mcqs
BILAL KHATTAK0

A.these are mixtures of allotropes
B.these are mixtures of isotopes
C.these are mixtures of isobars
D.element always contains some impurities

Related Mcqs:

  1. Elements have different nuclear charge but the same mass number are called
  2. A radioactive element A on radioactive disintegration gives two elements B and C. If B is helium and C is the element of atomic number 90 and atomic weight 234.1 the element A is
  3. If the atomic weight of an element isA the correct expression is
  4. Particles having the same atomic number but different mass unmbers are called
  5. The atomic heat capacities of all solid elements
  6. What is the atomic or ionic characteristic that determines the elements of which the atom or iron is representative?
  7. The bulb of a vapour pressure thermometer is a
  8. The Bourdon tube of a vapour pressure thermometer is a
  9. The corrector plate of a vapour pressure thermometer is
  10. The pointer of a vapour pressure thermometer is a

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