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6.5 Vocabulary
Matter
| Question | Answer |
|---|---|
| ELEMENT | A PURE SUBSTANCE THAT CANNOT BE BROKEN DOWN INTO OTHER SUBSTANCES BY CHEMICAL OR PHYSICAL MEANS |
| ATOM | THE SMALLEST PARTICLE OF AN ELEMENT THAT HAS THE PROPERTIES OF THAT ELEMENT |
| PROTON | A SMALL, POSITIVELY CHARGED PARTICLE IN THE NUCLEUS OF AN ATOM |
| NEUTRON | A SMALL PARTICLE IN THE NUCLEUS OF THE ATOM, WITH NO ELECTRICAL CHARGE |
| ELECTRON | A TINY, NEGATIVELY CHARGED PARTICLE THAT MOVES AROUND THE OUTSIDE OF THE NUCLEUS OF AN ATOM |
| MOLECULE | TWO OR MORE ATOMS THAT ARE CHEMICALLY BONDED TOGETHER |
| COMPOUND | A SUBSTANCE MADE OF TWO OR MORE ELEMENTS CHEMICALLY COMBINED |
| CHEMICAL BOND | AN ELECTRICAL FORCE OF ATTRACTION THAT HOLDS TWO ATOMS TOGETHER |
| PHYSICAL CHANGE | A CHANGE TO THE FORM OR APPEARANCE OF A MATERIAL BUT DOES NOT RESULT IN MAKING A NEW SUBSTANCE |
| CHEMICAL CHANGE | A CHANGE IN WHICH ONE OR MORE SUBSTANCES COMBINE OR BREAK APART TO FORM NEW SUBSTANCES |
| REACTANT | A SUBSTANCE THAT IS PRESENT AT THE START OF A CHEMICAL REACTION |
| PRODUCT | A NEW SUBSTANCE MADE DURING A CHEMICAL REACTION |
| COEFFICIENT | THE BIG NUMBER WRITTEN IN FRONT OF A CHEMICAL FORMULA THAT TELLS HOW MANY MOLECULES OR UNITS OF THAT SUBSTANCE ARE PRESENT |
| SUBSCRIPT | THE SMALL NUMBER WRITTEN AT THE BOTTON OF A CHEMICAL FORMULA THAT TELLS YOU HOW MANY ATOMS OF AN ELEMENT ARE PRESENT |