Molecular Compounds and Bonding Flashcards
What are the three ways to represent a molecule?
Empirical formula, molecular formula, and structural formula.
What trend in electronegativity is seen across a period?
Increases from left to right.
What trend in electronegativity is seen down a group?
Decreases from top to bottom.
What type of bond is formed between two atoms with a large electronegativity difference?
Ionic bond.
How do you determine if a bond is polar covalent, nonpolar covalent, or ionic?
By comparing electronegativity values.
How does bond length relate to bond strength?
Shorter bonds are stronger due to greater attraction.
What is a coordinate covalent bond?
A bond where both electrons come from the same atom.
What is the octet rule?
Atoms tend to gain, lose, or share electrons to achieve eight valence electrons.
What exceptions exist to the octet rule?
Elements like B, Be, and transition metals.
What is resonance?
The delocalization of electrons in molecules like benzene.
