Montefiore Medical Center

Example: Write the electron dot symbol for phosphorus. Answer: P = Phosphorus, Group 5A, therefore, there are 5 valence electrons. Using Your Periodic Table, complete the table below. Name Symbol Atomic Number Number of Valence Electrons Lewis Dot Structure 1. Hydrogen H 1 1 H· 2. Selenium 3. Oxygen O 6 4. Nitrogen 7 5. Potassium K 6. ................
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