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15 Cards in this Set
- Front
- Back
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Proton |
A positively charged particle in the nucleus of the atom. |
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Neutron |
An uncharged particle located in the nucleus of the atom. |
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Electron |
Invisible, negatively charged particles. |
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Nucleus |
Positively charged, central part of the atom. |
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Isotopes |
atoms of the same element that have different numbers of neutrons. |
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Atomic Number |
The top number. |
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Compound |
A substance whose smallest unit is made up of atoms of more than one element bonded together |
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Mixture |
When two or more substances come together but don't combine to make a new substance. |
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Atom |
A small particle that makes up most types of matter. |
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Element |
Matter made up only one kind of atom. |
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Metals |
Shiny or metallic luster and are good conductors of heat and electricity. |
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Non Metals |
Elements that are usually dull in appearance. |
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Metalloids |
Elements that have characteristics of metals and nonmetals. |
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Mercury |
only metal that is liquid at room temperature |
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Example of H2O |
water |
