| A | B |
|---|
| _________ ARE COMPOSED OF ATOMS WHICH ARE EXTREMELY SMALL | ELEMENTS |
| 4 MOST IMPORTANT ELEMENTS | C,H,O,N |
| _________ ARE FORMED BY THE CHEMICAL COMBINATION OF TWO OR MORE DIFFERENT KINDS OF ATOMS | COMPOUNDS |
| _____ MAKE ATOMS STICK TOGETHER | ATOMS |
| THE NUCLEUS OF AN ATOM HOLD THE _______ AND ________ | PROTONS AND NEUTRONS |
| PROTONS HAVE A _____ CHARGE | POSTITIVE |
| ELECTRONS HAVE A ______ CHARGE | NEGATIVE |
| _____ ARE LOCATED ON THE OUSTIDE OF THE ATOM | ELECTRONS |
| THESE COMPOUNDS ALWAYS CONTAIN CARBON AND HYDROGEN | ORGANIC COMPOUNDS |
| NAME FOUR ORGANIC COMPOUNDS FOUND IN ALL LIVING THINGS | CARBOHYDRATES, PROTEINS, LIPIDS, AND NUCLEIC ACIDS |
| NAME THREE INORGANIC COMPOUNDS THAT ARE ESSENTIAL FOR LIVING THINGS | H20, 02, C02 |
| ________ BONDS SHARE ELECTRONS | COVALENT BONDS |
| A PARTICLE IN WHICH 2 OR MORE ATOMS COMBINE AND ACT AS A SINGLE PARTICLE | MOLECULE |
| TWO WAYS THAT ATOMS BOND TO EACH OTHER | 1. COVALENT BOND 2. IONIC BONDS |
| _____ IS AN ATOM THAT HAS GAINED OR LOST AN ELECTRON | ION |
| WHEN AN ATOM LOSES ELECTRONS (-) IT BECOMES MORE? | POSITIVE |
| WHEN AN ATOM GAINS ELECTRONS IT BECOMES MORE ? | NEGATIVE |
| A CHEMICAL BOND THAT IS FORMED WHEN ATOMS GAIN OR LOSE ELECTRONS EX NA+CL- | IONIC BOND |
