Term
| what are the 2 types of radiation? |
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Definition
| Particulate and electromagnetic |
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Term
| what are the 2 types of particulate radiation? |
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Definition
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Term
| what are the 2 types of electromagnetic radiation? |
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Definition
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Term
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Definition
| a helium nucleus that contains two protons and two neutrons: 4 mass with a positive charge |
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Term
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Definition
| an electron emitted from the nucleus of a radioactive atom: no mass with an negative charge |
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Term
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Definition
| no mass, no charge, originates from the nucleus |
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Term
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Definition
| no mass, no charge, originates from the electron cloud or electron shells |
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Term
| what is the smallest particle that has all the properties of an element? (and is essentially empty space) |
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Definition
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Term
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Definition
| a small, dense, positively charged nucleus surrounded by negatively charged electrons that revolve in fixed orbits about the nucleus |
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Term
| what charge does an electron hold? |
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Definition
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Term
| The rows of the periodic table are classified as period and represent what? |
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Definition
| how many shells an element has |
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Term
| the columns of the periodic table are called the group and represent what? |
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Definition
| how many electrons are in the outermost shell |
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Term
| what determines what the chemical element actually is? |
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Definition
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Term
| in their normal state, elements have what charge? |
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Definition
| zero, they are electrically neutral |
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Term
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Definition
| the removal or addition of an orbital electron from an atom |
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Term
| what is the maximum number of electrons an outer shell can contain? |
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Definition
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Term
| What is the formula to determine the maximum number of electrons per shell? |
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Definition
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Term
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Definition
| the strength of attachment of an electron to the nucleus |
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Term
| things that have to do with electron binding energy |
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Definition
| the closer the electron, the more strongly bound it is; the more electrons total the more tightly they are bound; it takes more energy to ionize a larger atom |
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Term
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Definition
| equal to the number of protons and neutrons in the nucleus |
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Term
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Definition
| atoms that have the same atomic number but different masses (same element with a different weight) |
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Term
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Definition
| when atoms of various elements combine to form structures (ex: NaCl- sodium and chlorine combine to form table salt) |
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Term
| radioactive disintegration or decay |
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Definition
| when a nucleus spontaneously emits particles and energy to and transforms itself into another atom (results in alpha, beta particles |
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Term
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Definition
| the emission of particles and energy in order to become stable. |
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Term
| what are the electron shells labeled? |
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Definition
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Term
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Definition
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Term
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Definition
| number of protons plus the number of neutrons |
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