Which of the following has the electronic configuration [Xe] 6s2 4f14 5d10?
Correct Answer: Bismuth (Bi)
- Step 1: Understand that the electronic configuration describes how electrons are arranged in an atom.
- Step 2: Recognize that [Xe] represents the electron configuration of the noble gas Xenon, which has 54 electrons.
- Step 3: The notation 6s2 means there are 2 electrons in the 6s subshell.
- Step 4: The notation 4f14 means there are 14 electrons in the 4f subshell.
- Step 5: The notation 5d10 means there are 10 electrons in the 5d subshell.
- Step 6: Add the total number of electrons: 54 (from Xe) + 2 (from 6s) + 14 (from 4f) + 10 (from 5d) = 80 electrons.
- Step 7: Identify the element with 80 electrons, which is Bismuth (Bi).
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