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21 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What are elements? Give two examples.
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The simplest pure substances, they cannot be broken down into any other substances. Fe- Iron , Li- Lithium
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What's a compound? 2 ex.
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Compound- A pure substance made of two or more elements, combined chemically in a set ratio. Ex- sodium chlorides
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Mixture? Ex
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2 or more substances, elements, compounds
, or both that are in the same place but are not chemically combined. Ex - Air, soil, wood, gasoline, concrete, and orange juice. |
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Atom?
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The smallest particle within an element.
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Particle.
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Electrons?
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Negatively charged particles that move on the outside of an atom.
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Nucleus?
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Tiny region in the center of an atom.
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Protons?-
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Positively charged particles in the nucleus of an atom.
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Neutron?
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Small uncharged particles that are found in the nucleus of an atom.
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Nonpolar bond ?
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A covalent bond in which electrons are shared equally.
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Ion?
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An atom or group of atoms that has become electrically charged.
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Ionic bond?
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The attraction between oppositely charged ions
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How can you separate mixtures?
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Magnetism, filtration, evaporation, and distillation
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Describe the structure of an atom?
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Protons and neutrons in the nucleas, electron cloud surrounding the nucleus.
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Chemical properties of matter?
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Burning, rusting , combustion.
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Physical properties of matter?
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Texture, form description, and color change
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The number of protons in a neutral atom are equal to .....
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The elections
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Elements exist only of one kind of .....
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Atom.
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Atoms with similar properties are ....
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Located in the same group
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Covalent bonds are formed between.....
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2 nonmetals
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A covalent bond in which electrons are shared unequally.....
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Polar covalent bond.
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Characteristics of ionic bonds
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On element gives to anther/ high melting points/ form electricity.
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