Chemistry Concepts Flashcards

Front

VSEPR theory

Back

Valence Shell Electron Pair Repulsion theory explains the shape of molecules based on electron pair repulsion.

Front

Molecular geometry

Back

The three-dimensional arrangement of atoms in a molecule.

Front

Steric Number

Back

The number of atoms bonded to a central atom plus the number of lone pairs on the central atom.

Front

Polarity

Back

A measure of how equally or unequally electrons are shared in a molecule.

Front

Bond dipole

Back

A measure of the polarity of a chemical bond within a molecule.

Front

Net (Overall) dipole/Dipole moment

Back

The vector sum of all individual bond dipoles in a molecule.

Front

Partial charge

Back

A non-integer charge value on an atom in a molecule due to differences in electronegativity.

Front

Molecules in Magnetic or Electric Fields

Back

Molecules can align or orient themselves in response to external magnetic or electric fields.

Front

Hybridization

Back

The concept of mixing atomic orbitals to form new hybrid orbitals suitable for the pairing of electrons.

Front

Sigma and pi bonds

Back

Sigma bonds are single covalent bonds formed by head-on overlapping of orbitals, while pi bonds are formed by side-to-side overlap.