Period 3

Question 1

Oxide Properties

Answer 1

Na2O - Mg20 = Basic oxide
Al2O2 = Amphoteric oxide
SiO2 - Cl2O7 = Acidic Oxide

Question 2

Metals and non-metals

Answer 2

Na - Al = Metals
Si = Semi - metal (metalloid)
P - Ar = non - metal

Question 3

Properties and function of metalloid (Si)

Answer 3

Have properties of both metal and non - metals
Weak conductor of electricity but good electrical conductivity at high temp
Used in semiconductors and microchips