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chemistry worksheet - Name Date Period BASIC CHEMISTRY KEY...

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Name _______________________________ Date ________ Period ________ BASIC CHEMISTRY KEY TERMS: Matter Inorganic Atom Element Atomic nucleus Proton Neutron Atomic number 1
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Mass number (=atomic weight) Isotope Electron Valence electrons Orbital Octet rule Half-life Radioactive tracer Ion Dissociation Ionic bond Valence 2
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Ionization Molecule Molecular formula Structural formula Compound Acid Base Hydrogen ion Hydroxide ion PH Buffer 3
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Nonpolar covalent bond Polar covalent bond Ionic bond Anion Cation Hydrogen bond Hydrophobic Hydrophobic interactions Hydration Hydrophilic Bound water 4
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Surface tension Capillarity (=capillary action) Specific heat Freezing point of water Heat of vaporization Solvent Solute Aqueous solution QUESTIONS 1. Describe atomic structure using the terms proton, neutron, electron, mass number and orbital. Indicate what is meant by electrons in an "excited state" and those in a "ground state" 5
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2. Explain what an isotope is and give two important physical properties of isotopes that make them useful in biological research.
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