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14 Cards in this Set
- Front
- Back
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Atom |
Basic unit of matter |
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Nucleus |
protons and neutrons make nucleus |
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Electron |
Negative charged particle |
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Element |
Pure substance that consists entirely of one type of atom |
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Isotopes |
same elements that differ in the number of neutrons they contain |
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Compound |
Substance formed by the chemical combination of two or more elements in definite proportions |
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Ionic bond |
Formed when one or more electrons are transferred from one atom to another |
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Ions |
The positively and negatively charged atoms known as ions |
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Covalent bond |
Forms when electrons are shared between atoms |
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Molecule |
Is the smallest unit of most compounds |
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Van der Waals forces |
A slight attractions that develops between the oppositely charged regions of nearby molecules |
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What three subatomic particles make up atoms? |
Protons, neutrons, and electrons |
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How are all of the isotopes of an element similar? |
They have the same number of electrons, all isotopes of an element have the same chemical properties |
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What are the two main types of the chemical bonds? |
The main types of chemical bonds are ionic bonds and covalent bonds |
