properties of metals and non metals?
Answers
Answer :-
✏ Properties of Metals =
▶ Metals mostly are sonorous in nature i.e., they produce sound on hitting except soft metals like Sodium (Na), Potassium (K), Mercury (Hg), etc. For e.g., Iron, Cobalt, Nickel, etc.
▶ Metals are malleable in nature i.e., they can be moulded down into thin sheets on hammering or beating except soft metals. For e.g., Aluminium, Copper, etc.
▶ Metals are ductile in nature in nature i.e., they can be turned into thin wires or rods on changing shapes. For e.g., Iron, Copper, Aluminum, etc.
▶ Metals are mostly high reactive in nature and occupy postion in Alkali, Earth and Transition elements.
▶ Metals are basic in nature i.e., they produce basic oxides and also bases on dissolving in water. For e.g., NaOH (Sodium Hydroxide), etc.
▶ Metals liberate Hydrogen gas when they react with an acid.
▶ Metals mostly don't react among themselves instead they react with other non - metals.
▶ Metals are solid in at normal temperatures except Gallium, Cesium and Mercury.
▶ Metals are shiny, lustrous and hard in characteristics.
▶ Metals conduct electricity and heat.
For example, Iron, Sodium, Calcium, Potassium, etc.
✏ Properties of Non - Metals =
▶ Non - Metals are non - sonorous in nature i.e., they do not produce sound on hitting.
▶ Non - metals are non - malleable in nature i.e., they cannot be moulded into thin sheets.
▶ Non - metals are non - ductile in nature i.e., they cannot be turned into wires.
▶ They are bad - conductors of heat and electricity except Graphite.
▶They react among themselves to form compounds. Even, they can react with metals also.
▶ They are low reactive in nature. Also they occupy Non - Metal postion in Periodic Table.
▶ They are not shiny, lustrous but are brittle in nature except talc, etc.
▶They are mostly liquid or gaseous in nature except carbon, etc.
▶ They are acidic in nature i.e., they form acidic oxides and form acids when these oxides are dissolved in water. For e. g., NO
For example, Oxygen, Carbon, Nitrogen, etc.
★ More to know :-
• Classification of elements is done accordingly to Metals, Non - Metals and Metalloids. Even, there are certain other criterias for classification.
• Metalloids are the elements which posses both the qualities of metals and non - metals. They are also called as semi - metals. For e.g., Silicon, Germanium, etc.
• Among the reactive classification, the most unstable and reactive metals belong to d - block and f - block.
• Transition metals show variable characteristics that is their valence shell is filled in ground state whereas half filled in excited state. That's why they have different valencies.
Answer:
five properties of metal
Good electrical conductors and heat conductors.
Malleable - can be beaten into thin sheets.
Ductile - can be stretched into wire.
Possess metallic luster.
Opaque as thin sheet.
Solid at room temperature (except Hg).
five properties of non-metal
High ionization energies.
High electronegativities.
Poor thermal conductors.
Poor electrical conductors.
Brittle solids—not malleable or ductile.