My Element!

My Example

Element: pure substance that cannot be broken down into any other substance by chemical or physical means. Compound: made of two or more elements chemically bonded in a set ratio. Mixture: two or more substances that are in the same place but not chemically bonded together.

Element Consists of only one kind of atom.

Element Cannot be broken down into simpler matter by physical or chemical means.

Molecule: two or more atoms combined Atom: smallest part of matter Element Can exist as either atoms or molecules. Ar N2 Molecule: two or more atoms combined Atom: smallest part of matter

Element Periodic Table of Elements A limited number of elements make up Earth, living matter, oceans and the atmosphere. Periodic Table of Elements

Compound Consists of atoms of two or more different elements bonded together.

Compound Can be broken down into elements by chemical means. Element B Element A Element B

Table Salt: Used to season food Compound Has properties different from its component elements Na Sodium: will react violently with water NaCl Cl Chlorine: a gas which is deadly if inhaled Table Salt: Used to season food

There are two hydrogen atoms for every one oxygen atom. Compound Always contains the same ratio of its component atoms. H2O There are two hydrogen atoms for every one oxygen atom.

Mixture Two or more elements and/or compounds physically in the same space but not bonded together.

Mixture Can be separated into its components by physical means

Mixture Often retains the properties of its components. Salad Lettuce Carrot Tomato