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1. Define: Relative atomic mass.
Relative atomic mass of an element is the between the average mass of its isotopes to 1/12th part of the mass of a atom. It is denoted as .
2. Write the different types of isotopes of oxygen and its percentage abundance.
Mass | % abundance | |
_{8}\textrm{O}^{16} | ||
_{8}\textrm{O}^{17} | ||
_{8}\textrm{O}^{18} |
3. Define atomicity.
The present in a/an is called its ‘atomicity’.