The kinetic energy of the ball b is 12.3kJ and ball B to a is 14.2kj
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Answer:
Pretty sure it is Information transfer.
Explanation:
Ans: 7 electrons
The peaks in a photoelectron spectrum correspond to the binding energy of electrons in a given substance. The lower energy peaks represent the binding energy of the outer or valence electrons whereas the higher energy peaks correspond to that of the inner and core electrons.
The atomic number of bromine is 35. The electron configuration would be:
Br[35] =[ 1s²2s²2p⁶3s²3p⁶3d¹⁰]4s²4p⁵
The valence electron configuration is:
Br[35] = 4s²4p⁵
there are 7 valence electrons, thus the lowest energy peak would be associated with 7 electrons.