How Many of the Following Elements Have 1 Unpaired Electron

question 139

Multiple Choice

How many of the following elements have 1 unpaired electron in the ground state? B Al Se Cl

• A) 1
• B) 2
• C) 3
• D) 4

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The biological state or condition in which an organism has sufficient biological defenses to avoid infection, disease, or other unwanted biological invasion.

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