Chapter 6
Q. 6.6
Find the electron configurations of the sulfur and iron atoms.
ANALYSIS | |
identity of the atoms | Information given: |
atomic number of the atoms Figure 6.10; energy diagram |
Information implied: |
electron configurations for (a) S and (b) Fe | Asked for: |
STRATEGY
1. Find the atomic numbers of S and Fe in the periodic table.
S: atomic number = 16; Fe: atomic number = 26
2. Use Figure 6.10 and fill the appropriate sublevels.
Remember 4s fills before 3d.

Step-by-Step
Verified Solution
1s^{2}2s^{2}2p^{6}3s^{2}3p^{4} | (a) S |
1s^{2}2s^{2}2p^{6}3s^{2}3p^{4}4s^{2}3d^{6} | (b) Fe |
END POINT
Use the periodic table to check your answer. See Figure 6.11 and the accompanying discussion.
