Properties of Solids: Ionic, Molecular, Metallic

Front

What are metallic solids?

Back

Metallic solids are materials composed of metal atoms that are held together by metallic bonds, characterized by a 'sea of electrons' that allows for conductivity and malleability.

Front

Why are metallic solids excellent conductors of electricity?

Back

Metallic solids are excellent conductors of electricity because electrons are able to move freely within their metallic bonds.

Front

What is the melting point of MgCl2?

Back

MgCl2 has a melting point of 1412°C.

Front

How does MgCl2 conduct electricity in different states?

Back

MgCl2 does not conduct electricity as a solid but conducts electricity when dissolved in water (aqueous solution).

Front

What is the best conductor of electricity among NaCl(s), NaCl(aq), CH4(s), and CH4(aq)?

Back

NaCl(aq) is the best conductor of electricity among these options.

Front

What properties indicate that a solid is ionic?

Back

Ionic solids are typically hard, have high melting points, and do not conduct electricity in solid form but do conduct when dissolved in water.

Front

What properties indicate that a solid is molecular?

Back

Molecular solids are usually softer, have lower melting points, and do not conduct electricity.

Front

What is a characteristic of metallic solids regarding ductility?

Back

Metallic solids are ductile, meaning they can be drawn into wires without breaking.

Front

What is the melting point of copper (Cu)?

Back

Copper (Cu) has a melting point of 1085°C.

Front

What is the difference between ionic and molecular solids in terms of hardness?

Back

Ionic solids are generally hard due to strong ionic bonds, while molecular solids are usually softer due to weaker intermolecular forces.