Question
Bromine is a highly reactive liquid while krypton is an inert gas. Explain this difference based on their electron configurations.
Step 1
Bromine (Br) has an atomic number of 35, and its electron configuration is: 1sĀ² 2sĀ² 2pā¶ 3sĀ² 3pā¶ 4sĀ² 3dĀ¹ā° 4pāµ. Krypton (Kr) has an atomic number of 36, and its electron configuration is: 1sĀ² 2sĀ² 2pā¶ 3sĀ² 3pā¶ 4sĀ² 3dĀ¹ā° 4pā¶. Show more…
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