Chemistry, 06.01.2020 10:31 devenybates
An element x atomic number 3,relative atomic number 6.94 and consists of two isotopes of mass numbers 6 and 7 respectively.
what is the mass number of the more abudant isotope of x?
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An element x atomic number 3,relative atomic number 6.94 and consists of two isotopes of mass number...
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