Bohr Diagrams

Bohr Diagrams : 

Bohr Diagrams 1 M.BREGAR (DANTE C.S.S.)

The Atom : 

The Atom Smallest particles of matter, everything is made out of atoms Atoms are made of subatomic particles: 2 M.BREGAR (DANTE C.S.S.)

Atomic Structure(see handout – Atomic Structure & Periodic Table ) : 

Atomic Structure(see handout – Atomic Structure & Periodic Table ) Atoms are made of subatomic particles PROTONS & NEUTRONS Found in the nucleus Both have mass Protons carry an electrical charge Electrons Have negligible mass Carry an electrical charge Orbit the nucleus within electron shells NUCLEUS PROTONS NEUTRONS ELECTRONS Electron Shells 3 M.BREGAR (DANTE C.S.S.)

Atomic Structure : 

Atomic Structure Properties of Subatomic Particles 4 M.BREGAR (DANTE C.S.S.)

Reviewing Atomic Structure : 

Reviewing Atomic Structure 5 M.BREGAR (DANTE C.S.S.)

Bohr Diagrams : 

Bohr Diagrams A method of drawing atoms Based on “planetary model” of solar system Electrons circle nucleus in orbits (electron shells) You draw atoms based on the information provided by the periodic table 6 M.BREGAR (DANTE C.S.S.)

Orbits in Bohr Diagrams : 

Orbits in Bohr Diagrams Orbits or Energy Levels in Bohr Diagrams can hold a maximum number of electrons 7 M.BREGAR (DANTE C.S.S.)

Orbits in Bohr Diagrams : 

Orbits in Bohr Diagrams A electron shell / orbit is simply the area in which you find electrons Once you fill a shell you move to the next shell 8 M.BREGAR (DANTE C.S.S.)

Bohr Diagrams : 

Bohr Diagrams 9 M.BREGAR (DANTE C.S.S.)

A Real Atom : 

A Real Atom 10 M.BREGAR (DANTE C.S.S.)

Bohr Diagram of Helium : 

Bohr Diagram of Helium 11 M.BREGAR (DANTE C.S.S.)

Bohr Diagrams : 

Bohr Diagrams Now lets look at the steps to draw a Bohr diagram...... 12 M.BREGAR (DANTE C.S.S.)

Slide 13: 

13 M.BREGAR (DANTE C.S.S.)

Examples : 

Examples Lets complete examples of Bohr Diagrams for Carbon Lithium Helium Calcium 14 M.BREGAR (DANTE C.S.S.)

Slide 15: 

15 M.BREGAR (DANTE C.S.S.)