Valence Electrons Worksheet
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This document is a worksheet about valence electrons that contains questions asking students to: 1) Identify the number of electrons in various elements. 2) Draw Lewis structures and identify the number of outer shell electrons for different elements. 3) Identify the number of valence electrons elements have by filling in their electron configurations.
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Valence Electrons Worksheet
- 1. Valence Electron Worksheet Name _______________________________ Date _____________________ Period _____ Lewis Structures 1. How many electrons are in the following elements? A. Carbon C. Indium E. Tungsten B. Chlorine D. Calcium F. Antimony 2. Draw Lewis Structures for each of the following elements. How many electrons are in their outer shells? A. Silicon C. Sulfur E. Beryllium B. Potassium D. Boron F. Argon 3. Circle the valence electrons only. How many valence electrons does each atom have? 4. Finish the sentence: Elements in the same group have the same number of ___________ electrons. 5. Fill in the electrons for the following elements. Use your work to answer how many valence electrons each element has. Example: C (carbon): 1S___ 2S___ 2P___ ___ ___ 3S___ 3P___ ___ ___ #valence electrons __4__ He: 1S___ 2S___ 2P___ ___ ___ 3S___ 3P___ ___ ___ Number of valence electrons in helium _____ Cl: 1S___ 2S___ 2P___ ___ ___ 3S___ 3P___ ___ ___ Number of valence electrons in chlorine _____ Li: 1S___ 2S___ 2P___ ___ ___ 3S___ 3P___ ___ ___ Number of valence electrons in lithium _____ B: 1S___ 2S___ 2P___ ___ ___ 3S___ 3P___ ___ ___ Number of valence electrons in boron _____ F: 1S___ 2S___ 2P___ ___ ___ 3S___ 3P___ ___ ___ Number of valence electrons in fluorine _____ Ar: 1S___ 2S___ 2P___ ___ ___ 3S___ 3P___ ___ ___ Number of valence electrons in argon _____