A robot spacecraft returned samples from the planetesimal 98765 Aleks, located i

Question

A robot spacecraft returned samples from the planetesimal 98765 Aleks, located in the outer Solar System. Mass-spectroscopic analysis produced the following data on the isotopes of molybdenum in these samples: Use these measurements to complete the entry for molybdenum in the Periodic Table that would be used on 98765 Aleks. Be sure your answers have the correct number of significant digits. Caution: your correct answer will have the same format but not necessarily the same numbers as the entry for molybdenum in the Periodic Table we use here on Earth.

Explanation / Answer

The atomic mass of molybdenum will be weighted average mass of their isotopic mass and relative abundance

Therefore the mass of Mo in the periodic table used in the planet= (Mass of 96Mo isotope* relative abundance of 96Mo)+ ( Mass of 94Mo isotope*relative abundance of 94Mo isotope)

= (95.90*0.95)+(93.91*0.05)= 95.80

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