Spontaneous combustion is characterized by: an explosion a self-starting fire rapid oxidation lightning
2 answers:
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Answer:
1s² 2s²2p⁶ 3s²3p⁶ 4s²3d¹⁰4p⁶ 5s²4d¹⁰
Explanation:
Cd is the last element in the 4d block of the Periodic Table (see Figure).
It has the electron configuration of Kr, plus filled 5s and 4d subshells.
Thus, its electron configuration is
1s² 2s²2p⁶ 3s²3p⁶ 4s²3d¹⁰4p⁶ 5s²4d¹⁰
