Ionic and Metallic Bonding

Front

What is ionic bonding?

Back

Ionic bonding is the electrostatic attraction between positively charged ions (cations) and negatively charged ions (anions) formed through the transfer of electrons from one atom to another.

Front

What is metallic bonding?

Back

Metallic bonding is the force of attraction between free-floating valence electrons and the positively charged metal ions, allowing metals to conduct electricity and heat.

Front

How does the number of valence electrons affect melting points in metals?

Back

Metals with more valence electrons typically have higher melting points due to stronger metallic bonds.

Front

What is the electron sea model?

Back

The electron sea model describes how electrons are delocalized and free to move around in a metallic structure, contributing to conductivity.

Front

Why does magnesium have a higher melting point than sodium?

Back

Magnesium has a higher melting point because it contributes two additional electrons per atom to the electron sea compared to sodium's one.

Front

What is the significance of ionic charge in ionic compounds?

Back

The strength of the ionic bond in ionic compounds is influenced by the ionic charges; higher charges result in stronger attractions between ions.

Front

What is a good conductor of electricity in molten state?

Back

Ionic compounds like NaCl are good conductors of electricity in molten state because their ions are free to move.

Front

What is the primary difference between ionic and metallic bonds?

Back

The primary difference is that metallic bonds involve the movement of electrons among metal atoms, while ionic bonds involve electron transfer between atoms, creating charged ions.

Front

Which has a stronger bond: NaCl or BeO?

Back

BeO has a stronger bond because it has a larger ionic charge and a smaller distance between ions compared to NaCl.

Front

What is a cation?

Back

A cation is a positively charged ion that is formed when an atom loses one or more electrons.