an atom of iron has at least three different isotopes. what is the difference between an isotope of 55fe and an isotope of 58fe? question 1 options: three protonsthree electronsthree neutronsone proton and two neutronssavequestion 2 (1 point) choose the best description of what is wrong with the following electron configuration for an electrically neutral atom of chlorine (atomic number 17) 1s2 2s2 2p5 3s2 3p6question 2 options: the total number of electrons in the configurations does not equal 17, the atomic number of chlorinethere are low energy orbitals which have not been filled to hold the maximum number of electronsthe configuration is incorrect for both of these reasons
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Ответ:
2)The configuration is incorrect for both of these reasons.
Ответ:
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