All matter is composed of atoms. Atoms are single units of special substances called ________?

What does the atomic structure of an element determine?

What are a few of the 104 naturally occurring elements?

Atoms of elements unite to form more complex structures called _________.

Thousands of substances can be produced by chemically or physically combining different proportions of basic elements. Such combinations of elements are form either a ________ or _______.

Explain: Compounds

Elements in a compound are always in ________ proportions. Page 2-2

Explain: Mixture

Explain: Alloys

Define: cyclic loading

Babbitt Metal

Define: Non-Ferrous

What kind of metal alloy is used for aircraft?