Science Term1

Ionic compund

formed when a metal atom combines with a non metal atom.

Metallic bonds

formed when metal atoms combine with metal atoms.

Covalent bonds

when a non metal atom combines with a non metal atom

Chemical bond

forms when outer-shell electrons of different atoms interact and rearrange themselves into a more stable arragement

Ions

charged atoms that have lost or gained electrons

Cation

postive ions, positiviley charged because they have lost electrons

Anion

negative ions, negatively charged because they have gained electrons

Formula to finding how man electrons can fit in a electron shell

2n²

delocalised electrons

Electrons that move freely across multiple atoms instead of stayin one place.

Explain how metals are lustrous

When light hits a metal surface the light bounces off the delocalised electrons making that item appear shiny.

Explain how metals conduct electricity

Metals conduct electricity due to having delocalised electrons that can move freely throughout the metal lattice. When an electric current is applied the delocalised electrons, carry the charge and allows electricty to pass through.

Explain how metals are malleable

Metals are malleable because their atoms form a lattice that can slide past each other. The delocalised electrons help hold the layers together, so the metal can bend without breaking.

Explain how metals are strong

Metals are strong because they are tightly packed in the lattice, and the delocalised electrons hold the atom together.

Metal lattice

The atoms are tightly packed together in a regular pattern forming a metal lattice.