Chem Vocab

The type of bonding found in metals where positively charged metal ions are surrounded by a sea of delocalized electrons. This electron sea allows metals to conduct electricity and heat efficiently. It gives metals their unique properties like malleability and ductility.

The elements that straddle the line between metals and non-metals in the periodic table. These elements display properties of both metals and non-metals, making them useful in semiconductor technology. They are also known as semimetals.

A group of atoms held together by chemical bonds. These atoms can be of the same element, like in oxygen gas (O₂), or different elements, like in water (H₂O). They are the building blocks of matter and can exist as discrete units with specific properties.