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dickson study guide
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| Question | Answer |
|---|---|
| two or more elements chemically bonded | mixture |
| two substances the are combined they do not chemically combine | heterogenius |
| anything with mass that takes up space | matter |
| a pure substance made of one atom | element |
| any matter that is pure is called a[n] _____ | substance |
| how many electrons are in gold | 72 |
| which element has the symbol Li | lithium |
| how many neutrons are in Xenon | 77 |
| what is the atomic number used to determine | how many electrons and protons |
| what particle in an atom has a negative charge | electron |
| which makes up most of the mass of an atom | neutron |
| pure matters are called... | elements |
| which substance particle has no charge | neutrons |
| most elements on the periodic table are... | solids |
| elements on the stair step of the periodic table are called | metalloids |
| the periodic table contains about ___ elements | 90 |
| Flurine has what neutron number | 10 |
| what is the atomic symbol for argon | Ar |
| what is the atomic symbol for boron | Bo |
| how many electrons are in iodine | 53 |
| which elements atomic number is 60 | neodinium |
| which element has 75 protons | Rhenium |