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AP Bio-Vocab-Ch. 2

QuestionAnswer
Compound substance consisting 2 or more different elements
Element cannot be broken down to other substances by chemical reactions
Atomic # # of protons unique to that element, written as a subscript
Atomic Mass total mass of an atom
Energy capacity to cause change
Valence Shell outermost electron shell
Hydrogen Bond hydrogen atom covalently bonded to one electronegative atom is also attracted to another electronegative atom
Covalent Bond sharing of a pair of valence electrons by two atoms
Ionic Bond attraction between opposite charges(cation and anion)
Cation + charge
Anion - charge
Structure Formula branch like Ex: H-H or 0=0
Molecular Formula Elements and subscripts
Matter anything that takes up space and has mass
Chemical Equilibrium reactions offset one another
Created by: 100000135797591
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