Unit 4: Ionic and Metallic Bonding

Front

What is ionic bonding?

Back

Ionic bonding is the electrostatic attraction between positively and negatively charged ions, typically formed when electrons are transferred from one atom to another.

Front

What is metallic bonding?

Back

Metallic bonding is the attraction between metal ions and delocalized electrons, which allows metals to conduct electricity and heat.

Front

Why do metals have high melting points?

Back

Metals have high melting points because the negatively charged electrons act as a glue to hold the positively charged ions together.

Front

What are alloys?

Back

Alloys are mixtures of two or more elements, where at least one is a metal, designed to enhance certain properties such as strength and resistance to corrosion.

Front

Why are alloys generally used to make everyday objects?

Back

Alloys are often stronger and less reactive than pure metals, making them more suitable for everyday applications.

Front

What is the chemical formula for Ammonium Phosphate?

Back

The chemical formula for Ammonium Phosphate is (NH4)3PO4.

Front

What is the current name for NaHCO3?

Back

The current name for NaHCO3 is Sodium Bicarbonate.

Front

Describe the structure of copper.

Back

Copper has a lattice of positive ions surrounded by a 'sea of electrons', which allows it to conduct electricity.

Front

What is the significance of the 'sea of electrons' in metallic bonding?

Back

The 'sea of electrons' allows metals to conduct electricity and heat, as well as providing malleability and ductility.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons and the attraction between ions, while covalent bonds involve the sharing of electrons between atoms.