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. tron configuration
Worksheet 11: Bohr’s atomic model and elec Topic 3
Set A: Drawing Bohr’s atomic model Objective: To test your ability to obtain information from
electron configuration, and to draw Bohr’s atomic model.
Based on information from the Periodic Table, answer questions in each box about the given element.
Then draw Bohr’s atomic model for the element.
1. Magnesium - 25 2. Neon - 21
Electron configuration: Electron configuration:
Number of electron shells: ____ Number of electron shells: ____
Valence shell: : ____ Valence shell: : ____
Number of valence electrons: ____ Number of valence electrons: ____
Draw Bohr’s atomic model for magnesium-25. Draw Bohr’s atomic model for neon-21.
Teacher Preview Copy
Indicate appropriate number of particles in the Indicate appropriate number of particles in the
nucleus, and electrons (-) in electron shells. nucleus, and electrons (-) in electron shells.
Teacher Preview Copy
3. Rubidium - 86 4. Selenium - 78
Electron configuration: Electron configuration:
Number of electron shells: ____ Number of electron shells: ____
Valence shell: : ____ Valence shell: : ____
Number of valence electrons: ____ Number of valence electrons: ____
Draw Bohr’s atomic model for rubidium-86. Draw Bohr’s atomic model for selenium-78.
Indicate appropriate number of particles in the
Indicate appropriate number of particles in the nucleus, and electrons (-) in electron shells.
nucleus, and electrons (-) in electron shells.
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 21
Worksheet 11: Bohr’s atomic model and elec Topic 3
Set A: Drawing Bohr’s atomic model Objective: To test your ability to obtain information from
electron configuration, and to draw Bohr’s atomic model.
Based on information from the Periodic Table, answer questions in each box about the given element.
Then draw Bohr’s atomic model for the element.
1. Magnesium - 25 2. Neon - 21
Electron configuration: Electron configuration:
Number of electron shells: ____ Number of electron shells: ____
Valence shell: : ____ Valence shell: : ____
Number of valence electrons: ____ Number of valence electrons: ____
Draw Bohr’s atomic model for magnesium-25. Draw Bohr’s atomic model for neon-21.
Teacher Preview Copy
Indicate appropriate number of particles in the Indicate appropriate number of particles in the
nucleus, and electrons (-) in electron shells. nucleus, and electrons (-) in electron shells.
Teacher Preview Copy
3. Rubidium - 86 4. Selenium - 78
Electron configuration: Electron configuration:
Number of electron shells: ____ Number of electron shells: ____
Valence shell: : ____ Valence shell: : ____
Number of valence electrons: ____ Number of valence electrons: ____
Draw Bohr’s atomic model for rubidium-86. Draw Bohr’s atomic model for selenium-78.
Indicate appropriate number of particles in the
Indicate appropriate number of particles in the nucleus, and electrons (-) in electron shells.
nucleus, and electrons (-) in electron shells.
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 21
