As part of the exploration of one of the moons of Jupiter, a probe digs under th
ID: 892923 • Letter: A
Question
As part of the exploration of one of the moons of Jupiter, a probe digs under the surface, where it finds a pocket of gas. It starts to do some on-board experimentation. The data stored in the probe's computer include the following table of Mulliken electronegativity values, , of gases:
The electronegativity of an element has been defined by Mulliken according to the expression
=(IEA)2
where is the Mulliken electronegativity, I is the ionization energy, and EA is the electron affinity.
After doing some analysis, the probe determines that the gas pocket contains an element that has an ionization energy of I=1527kJ/mol and an electron affinity of EA=33.0kJ/mol. What is the identity of this element?
Element Electronegativity(kJ/mol) He 1178 Ne 1030 Ar 746 O 728 N 701 Kr 659 Xe 568 Rn 500
Explanation / Answer
I=1527kJ/mol and an electron affinity of EA=33.0kJ/mo
The above data indicates that it should be argon
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