a new element, uranium (ubm), is discovered with an atomic number of 120. there are 3 isotopes of ubm: ubm-312 with a relative a
1 answer:
The average atomic mass of uranium = 313.826 amu
What is average atomic mass ?
The weighted average mass of the atoms in a naturally occurring sample of an element is the average atomic mass, also known as atomic weight. Unified atomic mass units (u), where 1 u is equal to precisely one-twelfth the mass of a neutral atom of carbon-12, are the standard units used to express average masses.
average atomic mass =
average atomic mass of uranium = 313.826 amu
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