Term
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Definition
| mass of one proton (10^-24 g) |
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Term
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Definition
| smallest particle of a substance that retains its physical & chemical properties (1+ elements) |
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Term
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Definition
| fixed ratio, 2+ different elements, (all compounds are molecules) |
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Term
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Definition
| the smallest component of an element having the chemical properties of the element |
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Term
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Definition
| Number of protons + neutrons |
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Term
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Definition
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Term
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Definition
| Sharing of electrons between two atoms, strongest kind of bond, does not disassociate in water |
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Term
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Definition
| negatively charged particle in an atom, no significant mass, participates in bonding |
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Term
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Definition
| the ability of an atom to attract electrons |
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Term
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Definition
| Made of atoms, 92 naturally occurring |
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Term
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Definition
C,H,O,N (biological macromolecules)
P (DNA, RNA, energy-carrying nucleotides)
Na, K, Cl, Ca (electrochemical gradients across membranes)
Ca, Mg, Mn, Zn, Fe, Cu (cofactors for enzymes) |
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Term
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Definition
| weak between H and an N,O, or X |
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Term
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Definition
charged atom: gained electron/s - anion
lost electron/s + cation |
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Term
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Definition
| atom donates/accepts electron, dissociates in water |
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Term
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Definition
| Forms of elements with different number of neutrons |
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Term
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Definition
| found in the nucleus with protons but is not charged (weighs the same as a proton) |
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Term
| Periodic Table of the Elements |
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Definition
| Tabular display of the elements, elements get bigger from left to right and top to bottom |
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Term
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Definition
| Energy stored in a system |
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Term
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Definition
| Found in the nucleus of an atom, has mass and a +1 charge |
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Term
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Definition
| Electron orbits the nucleus in shells, 1st shell holds 2 electrons, 2nd 8 |
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Term
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Definition
| make up atom (electrons, neutrons, and protons) |
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Term
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Definition
| element needed in small quantities to carry out biological functions (ex. iodine) |
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Term
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Definition
| outermost, unfilled electron shell, participates in bonding |
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Term
| van der Waals interaction |
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Definition
| fluctuate, universal, between charged regions |
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