++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

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Presentation transcript:

Protons - positive charge Neutrons - no charge Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1- ) 2nd energy level holds a maximum of 8 (e 1- )

3 Atomic number # of protons (p 1+ ) 6 Mass Number # of protons + number of neutrons Li Symbol

++ + Nucleus 3p 1+ 3n 0 2e 1- 1e 1- Shortform for 6 Li 3

7p 1+ 8n 0 2e 1- 5e 1- Bohr Diagram N 7 Isotope notation 15

6p 1+ 8n 0 2e 1- 8e 1- Bohr Diagram Isotope notation The charge compares proton number to electron number C

10 p 1+ 12n 0 2e 1- 8e 1- Bohr Diagram Isotope notation Ne 10 22

12 p 1+ 16n 0 2e 1- 8e 1- Bohr Diagram 0e 1- Mg Isotope notation

16 p n 0 2e 1- 8e 1- Bohr Diagram Isotope notation 8e 1- S

15 32 P 3- The Bohr Diagram is 2e 1- 8e p n 0

19 40 K 1+ The Bohr Diagram is 2e 1- 8e p n 0

14 30 Si 2+ The Bohr Diagram is 2e 1- 8e 1- 2e p n 0

9 19 F 1- The Bohr Diagram is 2e 1- 8e 1- 0e 1- 9 p n 0

O Draw Bohr Diagrams for the following Na Ca N Si Na Ca N Si Ti B P (a)(b)(c)(d) (e)(f)(g)(h) (i)(j)(k)(l)

2e 1- 8e 1- 7e 1- 17p n 0 2e 1- 8e 1- 5e 1- 15p n 0 Isotope Notation is (m) (n)

2e 1- 8e 1- 20p n 0 2e 1- 8e 1- 21p n 0 Isotope Notation is (o) (p)

2e 1- 8e 1- 1e 1- 11p n 0 2e 1- 8e 1- 0 e 1- 8 p n 0 Isotope Notation is (q) (r)

2e 1- 8e 1- 0 e 1- 6 p 1+ 9 n 0 2e 1- 8e 1- 0 e 1- 7 p n 0 Isotope Notation is (s) (t)

2e 1- 0 e 1- 5 p 1+ 7 n 0 2e 1- 8e 1- 0 e p n 0 Isotope Notation is (u) (v)