1. Properties of Metals, Nonmetals, and Metalloids

2. Metals Properties of Metals
Located to the left and below the diagonal line in the periodic table.
Metals

3. Properties of Metals Metals are usually solids at room temperature
Good conductors of heat and electricity
High melting points and boiling points (except Hg)
High densities (except some group 1 metals)
Metals are shiny and reflect light

4. Properties of Metals Malleable – can be bent, pounded into sheets
Ductile – can be stretched into wire without breaking

5. Properties of Metals Mainly have 1, 2, or 3 outer shell electrons.
React with
nonmetals to
form ionic
bonds.

6. Properties of Metals Metallic Bonds
Metal atoms are surrounded by a sea of electrons because they are not held tightly

7. Properties of Nonmetals
Nonmetals are located to the right of the stair step line.
H NONMETALS

8. Properties of Nonmetals
The nonmetals exist in all three of the states of matter at room temperature: gases (such as oxygen), liquids (such as bromine), and solids (such as carbon).

9. Properties of Nonmetals
Nonmetals are not able to conduct electricity or heat very well.
Nonmetals have much lower melting and boiling points than metals.
Nonmetals are not nearly as dense as metals.

10. Properties of Nonmetals
The nonmetals have no metallic luster, and do not reflect light.
Nonmetallic elements are very brittle, and cannot be rolled into wires or pounded into sheets.
Sulfur powder

11. Properties of Nonmetals
They have
4 to 8 outer
shell
electrons.
Nonmetals bond with other nonmetals to form covalent bonds.

12. Hydrogen The Group 1 Nonmetal (oh, bother!)
Most of the hydrogen found in the world is found in water.

13. Properties of Metalloids
Metalloids are located on the staircase line, dividing metals from non metals.
Metalloids

14. Properties of Metalloids
Have a mixture of metallic and nonmetallic properties.
Can form ionic or covalent bonds.
Semi-conductors: Can conduct heat and electricity to some extent.