1. Metals, Nonmetals, and Metalloids:

2. Metals, Nonmetals, and Metalloids

3. Periodic Table:
Metals – Located on the left side of the
stair-step line (they are solids, except
Mercury which is liquid)
Nonmetals– Located on the right side
(solids, liquids, or gases).
Metalloids: Located between metals &
nonmetals (touching the
stair-step line).

4. Metals (on the left):
1) Solids at room temperature
2) Shiny, can be converted into wires (ductile) & into sheets (malleable).
3) High melting & boiling points.
4) Good conductors of electricity & heat.

5. Non metals (on the right):
1) Solids, liquids, or gases at room temp.
2) Low melting & boiling points.
3) They are brittle & poor conductors
of electricity & heat.
Metalloids:
They have properties of both metals &
non metals.

6. Electron Config. Symbol Column Row 1s2 2s2 2p6 3s1 1s2 2s2 2p6 3s2
Use the Periodic Table to complete the table:
Electron Config Symbol Column Row
1s2 2s2 2p6 3s1
1s2 2s2 2p6 3s2
1s2 2s2 2p1
1s2 2s2 2p6 3s2 3p3
[Ar] 4s2 3d10 4p4
[Kr] 5s2 4d10 5p5
1s2 2s2 2p6 3s2 3p6

7. Electron Config. Symbol Column Row 1s2 2s2 2p6 3s1 Na 1A 3
Use the Periodic Table to complete the table:
Electron Config Symbol Column Row
1s2 2s2 2p6 3s Na A
1s2 2s2 2p6 3s2
1s2 2s2 2p1
1s2 2s2 2p6 3s2 3p3
[Ar] 4s2 3d10 4p4
[Kr] 5s2 4d10 5p5
1s2 2s2 2p6 3s2 3p6

8. Electron Config. Symbol Colum Row 1s2 2s2 2p6 3s1 Na 1A 3
Use the Periodic Table to complete the table:
Electron Config Symbol Colum Row
1s2 2s2 2p6 3s Na A
1s2 2s2 2p6 3s Mg A
1s2 2s2 2p1
1s2 2s2 2p6 3s2 3p3
[Ar] 4s2 3d10 4p4
[Kr] 5s2 4d10 5p5
1s2 2s2 2p6 3s2 3p6

9. Electron Config. Symbol Colum Row 1s2 2s2 2p6 3s1 Na 1A 3
Use the Periodic Table to complete the table:
Electron Config Symbol Colum Row
1s2 2s2 2p6 3s Na A
1s2 2s2 2p6 3s Mg A
1s2 2s2 2p B A
1s2 2s2 2p6 3s2 3p3
[Ar] 4s2 3d10 4p4
[Kr] 5s2 4d10 5p5
1s2 2s2 2p6 3s2 3p6

10. Electron Config. Symbol Colum Row 1s2 2s2 2p6 3s1 Na 1A 3
Use the Periodic Table to complete the table:
Electron Config Symbol Colum Row
1s2 2s2 2p6 3s Na A
1s2 2s2 2p6 3s Mg A
1s2 2s2 2p B A
1s2 2s2 2p6 3s2 3p P A
[Ar] 4s2 3d10 4p4
[Kr] 5s2 4d10 5p5
1s2 2s2 2p6 3s2 3p6

11. Electron Config. Symbol Colum Row 1s2 2s2 2p6 3s1 Na 1A 3
Use the Periodic Table to complete the table:
Electron Config Symbol Colum Row
1s2 2s2 2p6 3s Na A
1s2 2s2 2p6 3s Mg A
1s2 2s2 2p B A
1s2 2s2 2p6 3s2 3p P A
[Ar] 4s2 3d10 4p Se A
[Kr] 5s2 4d10 5p5
1s2 2s2 2p6 3s2 3p6

12. Electron Config. Symbol Colum Row 1s2 2s2 2p6 3s1 Na 1A 3
Use the Periodic Table to complete the table:
Electron Config Symbol Colum Row
1s2 2s2 2p6 3s Na A
1s2 2s2 2p6 3s Mg A
1s2 2s2 2p B A
1s2 2s2 2p6 3s2 3p P A
[Ar] 4s2 3d10 4p Se A
[Kr] 5s2 4d10 5p I A
1s2 2s2 2p6 3s2 3p6

13. Electron Config. Symbol Colum Row 1s2 2s2 2p6 3s1 Na 1A 3
Use the Periodic Table to complete the table:
Electron Config Symbol Colum Row
1s2 2s2 2p6 3s Na A
1s2 2s2 2p6 3s Mg A
1s2 2s2 2p B A
1s2 2s2 2p6 3s2 3p P A
[Ar] 4s2 3d10 4p Se A
[Kr] 5s2 4d10 5p I A
1s2 2s2 2p6 3s2 3p Ar A

14. Electron Config. Symbol Colum Row 1s2 2s2 2p6 3s1 Na 1A 3
Use the Periodic Table to complete the table:
Electron Config Symbol Colum Row
1s2 2s2 2p6 3s Na A
1s2 2s2 2p6 3s Mg A
1s2 2s2 2p B A
1s2 2s2 2p6 3s2 3p P A
[Ar] 4s2 3d10 4p Se A
[Kr] 5s2 4d10 5p I A
1s2 2s2 2p6 3s2 3p Ar A
Groups Periods

15. Conclusion: Period 3 (Ar) 1s2 2s2 2p6 3s2 3p6 Group 8A
Outermost energy level = Period.
Number of valence electrons = Group

16. Periodic Table:
Periods: Are the horizontal rows on the
Periodic Table.
All elements in the same period contain the same number of energy levels.
The elements increases by one proton & one electron as you go from left to right in a period.
Then, the number of valence electrons increases by one across a period.

17. Periodic Table:
Groups-A number = # of valence electrons
Ex.
Elements in group 1A – contain 1 valence e-
Elements in group 3A – contain 3 valence e-
Elements in group 7A – contain 7 valence e-

18. Periodic Table:
Groups: Vertical columns (elements in
the same group have similar
properties).
Group 1A: The most reactive metals
(Alkali metals).
Group 2A : Reactive metals also
(Alkaline Earth metals).
Group 7A: The most reactive non metals
(Halogens).
Group 8A: Unreactive, very stables.
(Noble gases).

19. Periodic Table:
The Periodic Table is divided into four different blocks:
1) s-block: Its valence electrons occupy
only “s” orbitals.
Ex. Na 1s2 2s2 2p6 3s1
Ca 1s2 2s2 2p6 3s2 3p6 4s2
Because there is only one “s” orbital holding up to a maximum of 2 electrons, this block contains 2 columns or groups.
s-block: Group 1A & 2A

20. Periodic Table:
2) p-block: The outermost electron
occupy “p” orbitals.
Ex. B-1s2 2s2 2p1
Ar-[Ne] 3s2 3p6
Br-[Ar] 4s2 3d10 4p5
3 “p” orbitals (6 electrons) this block contains 6 columns or groups.
p-block: Group 3A - 8A

21. Periodic Table: s-block Representative or group A elements p-block

22. Periodic Table:
3) d-block: They have a filled outermost “s” orbital & partially filled or filled “d” orbitals in energy level (n-1).
Ex.
Sc- [Ar] 4s2 3d1
Cd- [Kr] 5s2 4d10
5 ”d” orbitals (10 electrons) this block contains 10 columns or groups.
d-block: Groups B, the transition metals

23. Periodic Table:
4) f-block: The outermost electron is
placed in “f” orbitals.
Ex.
Ce-[Xe] 6s2 4f2
Np- [Rn] 7s2 5f5
7 “f” orbitals (14 electrons) this block contains 14 columns or groups.
f-block: The inner transition metals

24. Periodic Table (Blocks):
“s” block
“p” block
“d” block
“f” block

25. Classification of Groups: