Atoms and Molecules Crystals Atoms Molecules Atom The

Atoms and Molecules Crystals

Atoms & Molecules: • Atom: The smallest particle of an element. Or in other words 1 element • Ex: Carbon C Just how small is an atom? Watch this video of a book and think about how small the top of the rooster’s head is at the very end.

Atoms & Molecules: • Molecule: is a particle made of 2 or more atoms bonded together. • Some molecules are made of atoms that are alike Oxygen (0₂) gas you breath. • Most are made of more than 1 type of atom. • Water molecules have 2 hydrogens (H) atoms combined with 1 oxygen (O) atom to make H₂O. • All compounds are molecules.

Chemical Reaction • When a chemical reaction takes place, bonds are separated! • Also new solution are formed! • Something usually causes this like energy being added!

Simple & Complex Molecules: Simple Molecules: • Simple Molecule: contains 1 or few bonds, they are small. Also known as monomers. • Ex: Ammonia, and Methanol • Complex Molecule: composed of many interconnected parts or subunits, can contain hundreds or thousands of bonds. Also known as polymers. • Ex: Sodium Chloride, diamonds.

Complex Structures continued: • Solids may be formed from molecules, or they may be extended structures with repeating subunits. • Ex: Crystals: • Crystals: An orderly, 3 -D pattern of ions or atoms in a solid.

Simple Molecules: Ammonia: NH₃ Methanol: CH₄O

Complex Molecules Diamond Sodium Chloride

Atoms and Molecules Videos • https: //www. youtube. com/watch? v=vl. SOESXQI 7 o 6 min • https: //www. youtube. com/watch? v=Af. Xx. Zw. NLv. PA 9 min