Answer to Question #101929 in General Chemistry for jude

Question #101929
Write the electronic configuration in terms of subshells for the following atoms:
i) Boron
ii) Magnesium
iii) Iron
iv) Bromine
v) Copper



Isotope Abundance
(%)
54Fe 5.8
56Fe 91.7
57Fe 2.2
58Fe 0.3
1
Expert's answer
2020-02-04T06:34:02-0500

Electronic configuration :


i) Boron(5) ="1s^2 \\ 2s^2\\ 2p^1"


ii) Magnesium(12) = "1s^2 \\ 2s^2\\ 2p^6\\ 3s^2"


iii) Iron(26) = "1s^2 \\ 2s^2\\ 2p^6\\ 3s^2\\ 3p^6\\ 3d^6\\ 4s^2"


iv) Bromine(35) = "1s^2 \\ 2s^2\\ 2p^6\\ 3s^2\\ 3p^6\\ 3d^{10}\\ 4s^2\\ 4p^5"


v) Copper(29) = "1s^2 \\ 2s^2\\ 2p^6\\ 3s^2\\ 3p^6\\ 3d^{10}\\ 4s^1"


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