++ + + protons - positive charge neutrons - no charge - - - nucleus - electrons negative charge 1st...

+ + + + 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- )

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+ ++

+ Protons -positive charge

Neutrons - no charge

Nucleus

- Electronsnegative charge

1st energy level holds a maximum of 2 electrons (e1-)

2nd energy level holds a maximum of 8 (e1-)

3Atomic number# of protons (p1+)

6Mass Number# of protons + number of

neutrons Li Symbol

+ ++ Nucleus

3p1+

3n02e1-1e1-

Shortform for

6Li3

Page 4: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

7p1+

8n02e1-5e1-

Bohr Diagram

N7 Isotope notation

Page 5: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

6p1+

8n02e1-8e1-

Bohr Diagram

Isotope notation

The charge compares proton number to electron number

C6144-

Page 6: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

10 p1+

12n02e1-8e1-

Bohr Diagram

Isotope notationNe10

Page 7: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

12 p1+

16n02e1-8e1-

Bohr Diagram

0e1-

Mg1228

Isotope notation

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

16 p1+

19 n02e1-8e1-

Bohr Diagram

Isotope notation

8e1-

S1635 2-

Page 9: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

1532P

3- The Bohr Diagram is

2e1-8e1-8e1- 15 p1+

17 n0

Page 10: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

1940K

1+ The Bohr Diagram is

2e1-8e1-8e1- 19 p1+

21 n0

Page 11: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

1430Si

2+The Bohr Diagram is

2e1-8e1-2e1- 14 p1+

16 n0

Page 12: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

919F

1- The Bohr Diagram is

2e1-8e1-0e1- 9 p1+

10 n0

Page 13: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

O18 3+8

Draw Bohr Diagrams for the following

Na25 1+11

Ca44 2+20

N17 3-7

29 4+14

Na25 3+11

Ca46 3+20

N19 1-7

31 2+14

Ti47 4+22

B10 3-5

31 1+14

(a) (b) (c) (d)

(e) (f) (g) (h)

(i) (j) (k) (l)

Page 14: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

2e1-

8e1-

7e1-

17p1+

19 n0

2e1-

8e1-

5e1-

15p1+

18 n0

Isotope Notation is

(m)

(n)

Page 15: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

2e1-

8e1-

20p1+

23 n0

2e1-

8e1-

21p1+

25 n0

Isotope Notation is

(o)

(p)

Page 16: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

2e1-

8e1-

1e1-

11p1+

15 n0

2e1-

8e1-

0 e1-

8 p1+

13 n0

Isotope Notation is

(q)

(r)

Page 17: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

2e1-

8e1-

0 e1-

6 p1+

9 n0

2e1-

8e1-

0 e1-

7 p1+

12 n0

Isotope Notation is

(s)

(t)

Page 18: ++ + + Protons - positive charge Neutrons - no charge - - - Nucleus - Electrons negative charge 1st energy level holds a maximum of 2 electrons (e 1-

2e1-

0 e1-

5 p1+

7 n0

2e1-

8e1-

0 e1-

13 p1+

16 n0

Isotope Notation is

(u)

(v)

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