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Chemistry, 22.06.2019 06:00, kylieweeks052704
Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.
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Chemistry, 22.06.2019 12:00, BreBreDoeCCx
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Chemistry, 22.06.2019 12:30, nekathadon
The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms
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Chemistry, 22.06.2019 12:30, johnsont8377
Avariable that is not being directly tested during an experiment should be changed varied experimented controlled
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Boron has an average atomic mass of 10.81. One isotope of boron has a mass of 10.012938 and a
relat...
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