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66 Cards in this Set
- Front
- Back
What is an atom?
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the basic unit of matter
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3 subatomic particles and their charge and location
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proton- positive charge, nucleus
neutron- no charge, nucleus Electron- negative charge, outside the nucleus |
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why are atoms neutral despite having charged particles?
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becaus eatoms have an even amount of neutrons and protons and because the subatomic particles have equal but opposite charges
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chemiccle elements
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a pure substance that consists entirely one type of atom
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isotope
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atoms of the same element that differ in the number of neutrons they contain
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radioactive isotope
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their nuclei are unstable and break down at a constant rate over time
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chemical compound
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a substance formed by the chemical combonation of 2 or more elements in a definate preportion
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chemical bonds
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hold atoms in compunds together
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covalent bond and formation
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when the mvoing electrons are located in a region between the atoms where the orbitols of the atoms overlap, forms when electrons are shared between atoms
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ionic bond and formation
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when 1 or more electrons are transferred to another, the attraction between opposingly charged ions
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ion
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positively and negativly charged ion
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molecule
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the smallest unit of most compounds
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Van de Waals forces
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intermolecular forces
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suspension
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the materials that seperate instead of dissolve in water
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solution
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when ions gradually disperse through water
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solute
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the components of a sloution that are distributed throughout the solution
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solvent
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the substance in which the solute dissolves
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pH scale
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a measurement for inducation to the concentration of H+ ions in a solution
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acid
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any compund that forms h+ ions in a solution
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base
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a compund that produces hydroxide ions in a solution
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test tube rack
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holds test tubes
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bunsen burners
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heat objects
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Erlenmeyer flask
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holds, measures, and mixes liquads
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triple beam balance
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measures mass
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dissecting scissors
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cuts specimen to be studied
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spatula
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transfers material from place to place
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funnel
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transfers liquid from one container to another; filters materials with filter paper
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forceps
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grasps small objects
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petri dish
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shallow dish used for bacterial cultures
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dissecting pins
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holds specimen on dissection tray
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pipette
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transfers measured amount of liquid
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hand lens
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magnifies small objects
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metric ruler
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measures length
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safety goggles
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protects eyes from fire and chemicle
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grauated cylinder
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measures volumes of liquid
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test-tube
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holds liquids
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scalpel
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cuts specimen to be dissected
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coverslip
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covers material on a microscope slide
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beaker
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holds and measures volume of liquid
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mortar and pestile
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grinds and crushes material
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test-tube brush
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cleans test tubes
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thermometer
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measure temperature
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inoculating loop
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trancfers bacteria from one culture to another
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compund light microscope
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magnifies very small objects
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dropper pipette
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measures out drops of liquid
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What is an atom?
|
the basic unit of matter
|
|
3 subatomic particles and their charge and location
|
proton- positive charge, nucleus
neutron- no charge, nucleus Electron- negative charge, outside the nucleus |
|
why are atoms neutral despite having charged particles?
|
becaus eatoms have an even amount of neutrons and protons and because the subatomic particles have equal but opposite charges
|
|
chemiccle elements
|
a pure substance that consists entirely one type of atom
|
|
isotope
|
atoms of the same element that differ in the number of neutrons they contain
|
|
radioactive isotope
|
their nuclei are unstable and break down at a constant rate over time
|
|
chemical compound
|
a substance formed by the chemical combonation of 2 or more elements in a definate preportion
|
|
chemical bonds
|
hold atoms in compunds together
|
|
covalent bond and formation
|
when the mvoing electrons are located in a region between the atoms where the orbitols of the atoms overlap, forms when electrons are shared between atoms
|
|
ionic bond and formation
|
when 1 or more electrons are transferred to another, the attraction between opposingly charged ions
|
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ion
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positively and negativly charged ion
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molecule
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the smallest unit of most compounds
|
|
Van de Waals forces
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intermolecular forces
|
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suspension
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the materials that seperate instead of dissolve in water
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|
solution
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when ions gradually disperse through water
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dissecting tray
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holds specimen for dissection
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test-tube holder
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holds hot test tubes
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hot plate
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heats objects
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stirring rod
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stirs liquids
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microscope slide
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holds objects for examination with compund light microscope
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dissecting probe
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pointed object used to examine specimen
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