Metals and Non-Metals Flashcards
What is Lustre?
Shining appearance
What is Malleability?
The property by which a substance can be beaten into sheets
What is Ductility?
The property by which a substance can be drawn into thin wires
What is Sonorous?
Production of loud noise upon striking
Which is the most malleable metal?
Gold
Which is the most ductile metal?
Gold
How much wire can be drawn from 1 g of Gold?
2 km
Which are the best conductor of heat and electricity?
Silver and Copper
Which are the poorest conductors of heat and electricity?
Lead and Mercury
What are the wires that carry electric current coated with?
Polyvinylchloride (PVC) or rubber-like material
Name a metal that is liquid at room temperature.
Mercury (Hg)
Name a metalloid that is liquid at room temperature.
Gallium (Ga) and Caesium (Cs)
Name a non-metal that is liquid at room temperature.
Bromine (Br)
Name a metal that has very low melting points.
Gallium (Ga) and Caesium (Cs)
Name a non-metal that is lustrous.
Iodine (I)
What are the different forms of Carbon called?
Allotropes
Which is the hardest natural substance known?
Diamond
Name a non-metal with High Melting and Boling point.
Diamond
Name the best non-metal conductor of electricity.
Graphite
Name the softest Metals.
Sodium (Na) and Potassium (K)
Sodium, Potassium and Lithium are called?
Alkali Metals
Iodine, Chlorine, Bromine, Flourine are called?
Halogen elements
Most non-metals produce __________.
Acidic oxides