I. Building Blocks of Matter:<br />MATTER is made up of the smallest BASIC particle called an ATOM<br />(matter is anything that has mass…pretty much everything around you)<br />
<ul><li>Atoms have 2 main parts:</li></ul>NUCLEUS: central region that contains protons & neutrons<br />
ENERGY LEVEL or ELECTRON CLOUD: area outside the nucleus that contains the electrons<br />
<ul><li>Made up of 3 kinds of subatomic particles</li></ul>PROTONS: positive charge<br />NEUTRONS: neutral (no charge)<br />ELETRONS: negative charge<br />
II. Properties of Atoms<br />Atoms are electrically NEUTRAL<br />Number of ELECTRONS is equal to the number of PROTONS<br />
2. In nature, atoms will BOND to other atoms to become stable<br />ELECTRONS are part of why atoms bond together<br />
There are 2 types of electrons<br />CORE and VALENCE electrons:<br /> ***Valence Electrons: OUTSIDE electrons <br /> that are involved in bonding.<br />
3. BONDING: an attraction within atoms to form a chemical compound<br />All atoms are electrically neutral but are UNSTABLE until they form an attraction with another atom<br />The outermost energy level may SHARE, LOSE, or GAIN electrons to form a BOND and become stable<br />
Two types of bonds found within atoms:<br />1. Covalent: Atoms share electrons (can be single, double, or triple)<br />
Two types of bonds found within atoms:<br />2. Ionic: When one or more electrons is lost from one atom and transferred to another<br />
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