Metals, Nonmetals

Flashcards for vocabulary review based on lecture notes.

Isotopes

The same element of an atom with different mass (amount of neutrons)

Classes of Elements

There are two classes of elements.

Types of Elements

Elements are subdivided into three types.

Alkaline Metals

Group A2, Form basic compounds.

Alkali Metals

Group A1

Halogens

Group 7A

Noble gases

Group 8A

Basic Compounds

Compounds with alkaline properties.

Metals

Elements with high melting and boiling points, high conductivity of heat and electrical current, and are solid at room temperature. Also like to lose electrons and become cations.

melting point

The temperature at which a solid substance changes into a liquid.

boiling points

The temperature at which a liquid changes into a gas or vapor.

Nonmetals

A type of element that typically lack metallic properties. They generally have lower melting and boiling points compared to metals and are poor conductors of heat and electricity. Nonmetals tend to gain electrons to become anions.

Metalloid

A type of element that have properties of both metals and nonmetals. Their conductivity can vary, making them useful as semiconductors. Examples include silicon and germanium, which are commonly used in electronic devices.