Ap Chemistry Unit 2 |75 Questions| With Correct Answers.

electronegativity difference {Ans: The difference in electronegativity between two elements in a bond.}steric number {Ans: number of atoms bonded to central atom + number of lone pairs on central atom}electron sea model {Ans: Proposes that all metal atoms in a metallic solid contribute their valence electrons to form a "sea" of electrons, and can explain properties of metallic solids such as malleability, conduction, and ductility.}formal charge {Ans: The number of valence electrons in an isolated atom minus the number of electrons assigned to the atom in the Lewis structure}trigonal bipyramidal {Ans: 120, 180, and 90 degrees}bond order {Ans: the number of bonds between atoms: 1 for a single bond, 2 for a double bond, and 3 for a triple bond}