A research team has just discovered a new element called Likhitium. Now they need to determine the average atomic mass in order to complete the entry on the periodic table. Given the following relative abundances, what is the average atomic mass of Likhitium?
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Ответ:
The question is incomplete, the complete question is shown in the image attached to this answer.
139.13
Explanation:
The average atomic mass of the element Likhitium is the sum of the relative abundance of all the isotopes of Likhitium.
We obtain the relative atomic mass of Likhitium as follows;
(44.7/100 * 138) + (52.3/100 * 139) + (0.5/100 * 140) + (2.5/100 * 141)
61.7 + 73.2 + 0.7 + 3.53 = 139.13
Hence the relative abundance of Likhitium is 139.13
Ответ:
cortex
Explanation: