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A&P Unit 2

Unit 2 :)

TermDefinition
Energy Ability to do work
Potential energy Stored energy (bonds)
Kinetic energy energy of motion
Chemical energy stored in bonds (ATP)
Electrical energy flow of electrons
mechanical energy movement of parts
radiant energy particle waves
thermal energy heat energy
element fundamental units of matter
atoms building blocks for elements
96% of body made of these 4 elements Carbon, Hydrogen, Oxygen, Nitrogen
Nucleus includes___ protons and neutrons
outside of nucleus electrons
atomic number the number of protons that an atom has
atomic mass number sum of protons and nuetrons
isotopes atoms of same element but differ in number of neutrons
atomic weight close to mass number of most abundant isotope, reflects natural isotope variation
Radioisotope Heavy isotope, unstable, decomposes to more stable isotope
Molecule 2 or more like atoms combined chemically
Compound 2 or more different atoms chemically combined
Anabolic Synthesis reactions
Catabolic Dissociate from other atoms, broken bonds
Electron shells electrons occupy these energy levels
Ionic bond Stealing/Giving of an electron
Covalent Bond in which that the electrons are shared
Polar Unequal share of electrons
Nonpolar Equal share of electrons
Created by: rrodriguez7056
 

 



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