Chemical Bonding flashcards

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What is a cation?Ionic Bonding: A positively charged ion.
What is an anion?Ionic Bonding: A negatively charged ion.
How do simple ionic formulas balance?Ionic Bonding: Total positive and negative charges sum to zero.
What is a formula unit?Ionic Bonding: Simplest whole-number ratio in an ionic solid.
What does an ionic formula show?Ionic Bonding: The lowest neutral ratio of ions.
Why use parentheses around a polyatomic ion?Ionic Bonding: To show more than one copy of the whole ion.
What does a molecular formula tell?Covalent Bonding: Types and counts of atoms in a molecule.
What is a bonding pair?Covalent Bonding: Shared electron pair in a Lewis model.
What is a lone pair?Covalent Bonding: Valence-electron pair not shown as bonding to another atom.
Is water linear?Covalent Bonding: No, the molecule is bent.
What does one Lewis bond line represent?Covalent Bonding: One shared electron pair.
Does bond breaking require or release energy?Covalent Bonding: It requires energy.
What determines net reaction energy from bonds?Covalent Bonding: Energy for breaking bonds compared with energy released forming bonds.
What does VSEPR model?Molecular Shape and Polarity: Approximate geometry from electron-domain repulsion.
How many domains does a double bond count as?Molecular Shape and Polarity: One domain.
What is molecular shape?Molecular Shape and Polarity: The arrangement of atoms around the central atom.
What determines net molecular polarity?Molecular Shape and Polarity: Bond dipoles and their three-dimensional vector sum.