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Which of the following atoms would have the greatest velocity if each atom had the same kinetic ener

label Chemistry
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i need to know which atom it is?

Oct 18th, 2017

The formula for kinetic energy is KE = (1/2) m*v^2, where m is the mass of an atom and v is its velocity. Note that for the same KE the velocity is equal v = sqrt{2*KE/m} and is the greatest for the atom with the smallest mass. So, you need to choose the atom with the smallest atomic mass (see the Periodic Table) and I cannot do it unless you provide the list of the atoms.

Mar 24th, 2015

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