chemistry

composition

structure

properties

physics

matter energy

Atoms

Atoms

Elem

ents

Same types of atom

s

117**more may be created in labs

MoleculeMolecule

• Used to describe what’s in a molecule.

• To read a chemical formula:

– The symbols are from the periodic table

– Subscript numbers tell you how many atoms.• H2O: made of 2 atoms of hydrogen & 1 atom of oxygen

• O3: made of 3 atoms of oxygen

Image Credits• Title slide

– wallyg– Yvonne in Willowick Ohio– cruadinx– cshoresal– Paco CT– Braid 44– majamarko– diebmx– Candle Tree– fofurasfelinas– Lukman Kusuma– OskarN– charliebay (one) (two)– ShamsD– MonkeyMike

• Carbon 60 by St Stev• Physics in Sepia by chefranden• Atom Image from Wikimedia Commons• Image:AOs-1s-2pz.png (Atomic orbitals) from

Wikipedia• Atomic resolution Au100 (gold atoms) from

Wikimedia commons

• Jmol1 from Wikipedia Commons• Kochendes wasser02 by Markus Schweiss• Sugar cubes by Creet• Sucrose molecule 3D by Michael Stroeck• Perfect Blue by Iain Alexander• Water & food coloring by William Chamberlin• [Lava lamp] by El Fafa