Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1: To determine which element has 7 valence electrons, we can refer to the periodic table and look for the elements in the 1st period (hydrogen and helium), 2nd period (lithium to neon), 3rd period (sodium to argon), and so on.
Step 2: In the 2nd period, we have 8 elements, starting from lithium (Li) with 1 valence electron, beryllium (Be) with 2 valence electrons, boron (B) with 3 valence electrons, carbon (C) with 4 valence electrons, nitrogen (N) with 5 valence electrons, oxygen (O) with 6 valence electrons, and finally fluorine (F) with 7 valence electrons.
Final Answer
Fluorine (F) has 7 valence electrons.
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students