Metals

Mr. JohnstonSaigon South International School

Observation vs. Inference

Lesson Objectives

● What are physical and chemical properties of metals?

● How are metals classified?

Homework Chat-Physical Properties of Metals

Malleability

Luster

Ductility

Magnetism

Chemical Properties of Metals

Reactivity

Corrosive

How are metals Classified?

Alkali Metals-Most reactive, so reactive, not found uncombined with other elements in nature. (Found only in compounds) NaCl=Table Salt

Alkali Earth Metals-Harder and denser, and melt at higher temperatures than alkali metals. Alkali metals are reactive but NOT AS reactive as alkali metals. Also, these elements are never found by themselves and are usually found as a part of a compound. Calcium compounds are essential for healthy bones.

Scavenger Hunt!