Matter and Chemical Change

Question 1

What are alkali metals?

Answer 1

Alkali metals are a group of elements on the periodic table that are in the first row.

Question 2

What are the properties of Alkali metals?

Answer 2

1. They are softer than most metals
2. Good conductors of heat and electricity
3. Explode if exposed to water

Question 3

Where are Alkaline metals found and what are its properties?

Answer 3

They are found in group 2.
- They are extremely reactive
- They aren’t found freely in nature
- Radium is an alkaline earth metal

Question 4

Rare Earth Elements

Answer 4

They are found in groups 3-6-7
- There are 30 Rare earth Elements
- Many are synthetic or man made

Question 5

Transition Metals

Answer 5

-Iron, cobalt, and nickel, are the only elements known to produce a magnetic field

Question 6

Other Metals

Answer 6

-Found in groups 13-15
- Are metals solid with high density
-ex. Tin, aluminum, and lead

Question 7

What are Metalloids?

Answer 7

Elements that have metal and non-metal properties
- Some are semi-conductors meaning they can carry an electrical charge under certain conditions
- Are great for computers and calculators