Ch. 3 Elements, Compounds, and Mixtures Flashcards
1
Q
element
A
a substance that cannot be separated or broken down into simpler substances by chemical means
2
Q
pure substance
A
a sample of matter, either a single element or a single compound, that has definite chemical and physical properties
3
Q
metal
A
an element that is shiny and can conduct heat and electricity
4
Q
nonmetal
A
an element that conducts heat and electricity poorly
5
Q
metalloid
A
an element that has properties of both metals and nonmetals
6
Q
compound
A
a substance made up of atoms by two or more elements joined by chemical bonds
7
Q
mixture
A
a combination of two or more substances that are not chemically bonded
