Types of Elements on the Periodic Table

1. Alkalil Metals

1.1. Very reactive thanks to their valency of 1

1.2. Generate heat in contact with the compound H20

1.3. Good conductors for heat

1.4. On the far left of the periodic table of the elements

2. Alkaline Earth Metals

2.1. Not as reactive as alkalil metals thanks to their valency of 2

2.2. They have a relatively low atomic density

2.3. They are lustrous

2.4. Just to the right of alkali metals, still on the left of the periodic table

3. Transition Metals

3.1. They are lustrous

3.2. They are ductile and malleable

3.3. The largest block on the periodic table, usually seen occupying groups 3-12 on the periodic table

3.4. Not all transition metals have the same valency, but the vast majority of transition metals have a valency of 2

4. Lathanides

4.1. Reactive metals

4.2. Lustrous and relatively soft

4.3. The first part of the lower section of the periodic table [below the main periodic table]

4.4. Not all lathanides have the same valency

5. Poor Metals

5.1. Ductile

5.2. Malleable

5.3. Between transition metals and metalloids

6. Actinides

6.1. Isotopes

6.2. Sometimes lustrous

6.3. Metallic

6.4. The second, lower part of the lower section of the periodic table [below the main periodic table]

6.5. Not all actinides have the same valency

7. Metalloids

7.1. Can act both as metals and nonmetals

7.2. A jagged staircase-like line down the periodic table seperating metals and nonmetals

7.3. Not all metalloids have the same valency

8. General Nonmetallic Elements

8.1. Not malleable

8.2. Non-lustrous

8.3. They are in groups 14, 15, and 16, excluding metalloids

8.4. Except for hydrogen, which has a valency of 1, the valencies are 4 for group 14, 3 for group 15 and 2 for group 16

8.5. Hydrogen is often placed in this group but is very reactive but has a closer reactivity and composition to alkali metals or halogens than general nonmetals

9. Halogens

9.1. Acidic if near hydrogen or oxygen, can mix with alkali metals to form salts

9.2. Very reactive due to their valency of one

9.3. Group 17 on the periodic table, directly to the left of the noble gases.

10. Noble Gases

10.1. Stabe thanks to their valency of 0

10.2. Always gaseous at room temperature

10.3. To the far right of the periodic table