Question

properties of the metals & non metals?​

Answer 1

Metals / Non-metals

Good conductors of electricity /Poor conductors of electricity

Good conductors of heat / Poor conductors of heat

High density/ Low density

Malleable and ductile/ Brittle

Answer 2

Answer:

State: Metals are solids at room temperature with the exception of mercury, which is liquid at room temperature (Gallium is liquid on hot days).

Luster: Metals have the quality of reflecting light from their surface and can be polished e.g., gold, silver and copper.

Malleability: Metals have the ability to withstand hammering and can be made into thin sheets known as foils. For example, a sugar cube sized chunk of gold can be pounded into a thin sheet that will cover a football field.

Ductility: Metals can be drawn into wires. For example, 100 g of silver can be drawn into a thin wire about 200 meters long.

Hardness: All metals are hard except sodium and potassium, which are soft and can be cut with a knife.

Valency: Metals typically have 1 to 3 electrons in the outermost shell of their atoms.

Non metals

Physical State: Most of the non-metals exist in two of the three states of matter at room temperature: gases (oxygen) and solids (carbon). Only bromine exists as a liquid at room temperature.

Non-Malleable and Ductile: Non-metals are very brittle, and cannot be rolled into wires or pounded into sheets.

Conduction: They are poor conductors of heat and electricity.

Luster: These have no metallic luster and do not reflect light.