29.i) Define atomic mass unit.ii) What is the dumerical value of mole.

1.	29.i) Define atomic mass unit.ii) What is the dumerical value of mole.iii) Name the elements present in oxide ion.
Answer» Answer: 1) The mass of an atom of a chemical element EXPRESSED in ATOMIC mass units. It is APPROXIMATELY equivalent to the NUMBER of PROTONS and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.

29.i) Define atomic mass unit.ii) What is the dumerical value of mole.iii) Name the elements present in oxide ion.

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Answer:

1) The mass of an atom of a chemical element EXPRESSED in ATOMIC mass units. It is APPROXIMATELY equivalent to the NUMBER of PROTONS and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.

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29.i) Define atomic mass unit.ii) What is the dumerical value of mole.iii) Name the elements present in oxide ion.​

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29.i) Define atomic mass unit.ii) What is the dumerical value of mole.iii) Name the elements present in oxide ion.