1. Metals Nonmetals Metalloids dull shiny brittle malleable not malleable
not ductile
poor conductors of thermal and electric energy
some have reactivity
shiny
malleable
ductile
good conductors of thermal and electric energy
have reactivity
share some properties of metals and some of nonmetals.
some are shiny some are dull
some are malleable and some are not
some are ductile and some are not
semiconductors of electric energy
have reactivity

2. Malleable is the ability of a metal to be hammered into a thin sheet.

3. Ductile is the ability of a metal to be drawn into thin wires.

4. Conductor means an element has the ability to carry electric current or heat (thermal energy).

5. Reactivity means an element has the ability to combine with other elements.

6. Brittle means an element breaks easily.

7. Shiny is the ability of an element to reflect light.

8. Dull is not being shiny (does not reflect light..

9. Semiconductors carry some electric current when certain conditions are present.

10. They can not carry heat or electric current through them.