Bohr Model Diagrams Lesson 3.1 Extension

F Step 1 9 Determine the number of Particles found in the element. Number of electrons is equal to the number of protons in a neutral atom. This value is equal to the atomic number. F 9 18.998 Number of Protons = Number of Electrons = Number of Neutrons = 9 (atomic #) 9 (proton #) 10 (amu – protons)

Fluorine F 9 9 10 9 Element Name: _______________________ Chemical Symbol: _______ Atomic Number: _______ Diagram the Bohr atom which contains: 9 10 9 _____ protons _____ neutrons _____ electrons

Step 2 Draw a circular nucleus with the correct number of and symbol for both protons and neutrons. The nucleus contains both neutrons and protons. 9p+ 10no

Step 3 Draw the correct number of electron shells (equal to the period of the element on the periodic table). Therefore, fluorine is found in period #2 (2 shells). 9p+ 10no

Step 4 Represent electrons as dots in orbits or energy levels/shells. 1st Shell: 2 e- ; 2nd Shell: 8 e- ; 3rd Shell: 18 e- 9p+ 10no

Fluorine F 9 9 10 9 Element Name: _______________________ 9p+ 10no Chemical Symbol: _______ Atomic Number: _______ 9p+ 10no Diagram the Bohr atom which contains: 9 10 9 _____ protons _____ neutrons _____ electrons

Bohr Model Diagrams You are responsible for doing 8 Bohr Models. You may choose from the first 18 elements. You may not do any that your partner are doing. Make sure that it is very neat.

Hydrogen H 1 1 1 Element Name: _______________________ 1p+ 0no Chemical Symbol: _______ Atomic Number: _______ 1p+ 0no Diagram the Bohr atom which contains: 1 1 _____ protons _____ neutrons _____ electrons

Helium He 2 2 2 2 Element Name: _______________________ 2p+ 2no Chemical Symbol: _______ Atomic Number: _______ 2p+ 2no Diagram the Bohr atom which contains: 2 2 2 _____ protons _____ neutrons _____ electrons

Lithium Li 3 3 4 3 Element Name: _______________________ 3p+ 4no Chemical Symbol: _______ Atomic Number: _______ 3p+ 4no Diagram the Bohr atom which contains: 3 4 3 _____ protons _____ neutrons _____ electrons

Beryllium B 4 4 5 4 Element Name: _______________________ 4p+ 5no Chemical Symbol: _______ Atomic Number: _______ 4p+ 5no Diagram the Bohr atom which contains: 4 5 4 _____ protons _____ neutrons _____ electrons

Boron B 5 5 6 5 Element Name: _______________________ 5p+ 6no Chemical Symbol: _______ Atomic Number: _______ 5p+ 6no Diagram the Bohr atom which contains: 5 6 5 _____ protons _____ neutrons _____ electrons

Carbon C 6 6 6 6 Element Name: _______________________ 6p+ 6no Chemical Symbol: _______ Atomic Number: _______ 6p+ 6no Diagram the Bohr atom which contains: 6 6 6 _____ protons _____ neutrons _____ electrons

Nitrogen N 7 7 7 7 Element Name: _______________________ 7p+ 7no Chemical Symbol: _______ Atomic Number: _______ 7p+ 7no Diagram the Bohr atom which contains: 7 7 7 _____ protons _____ neutrons _____ electrons

Oxygen O 8 8 8 8 Element Name: _______________________ 8p+ 8no Chemical Symbol: _______ Atomic Number: _______ 8p+ 8no Diagram the Bohr atom which contains: 8 8 8 _____ protons _____ neutrons _____ electrons

Fluorine F 9 9 10 9 Element Name: _______________________ 9p+ 10no Chemical Symbol: _______ Atomic Number: _______ 9p+ 10no Diagram the Bohr atom which contains: 9 10 9 _____ protons _____ neutrons _____ electrons

Neon Ne 10 10 10 10 Element Name: _______________________ 10p+ 10no Chemical Symbol: _______ Atomic Number: _______ 10p+ 10no Diagram the Bohr atom which contains: 10 10 10 _____ protons _____ neutrons _____ electrons

Sodium Na 11 11 12 11 Element Name: _______________________ Chemical Symbol: _______ Atomic Number: _______ 11p+ 12no Diagram the Bohr atom which contains: 11 12 11 _____ protons _____ neutrons _____ electrons

Magnesium Mg 12 12 12 12 Element Name: _______________________ Chemical Symbol: _______ Atomic Number: _______ 12p+ 12no Diagram the Bohr atom which contains: 12 12 12 _____ protons _____ neutrons _____ electrons

Aluminum Al 13 13 14 13 Element Name: _______________________ Chemical Symbol: _______ Atomic Number: _______ 13p+ 14no Diagram the Bohr atom which contains: 13 14 13 _____ protons _____ neutrons _____ electrons

Silicon Si 14 14 14 14 Element Name: _______________________ Chemical Symbol: _______ Atomic Number: _______ 14p+ 14no Diagram the Bohr atom which contains: 14 14 14 _____ protons _____ neutrons _____ electrons

Website References Periodic Table of the Elements www.webelements.com Photographic Periodic Table of the Elements http://periodictable.com Periodic Table of Videos www.periodicvideos.com