Electron Shells and Polar Covalent Bonds (Notes)

Vocabulary flashcards about electron shells, their electron capacity, and polar covalent bonds with water as an example.

Electron shell (cloud)

Levels around an atom where electrons reside; the inner shell holds two electrons and other shells are described as holding eight electrons in the notes.

Inner shell

The first electron shell; it should hold two electrons to be stable.

First shell

The innermost electron shell of an atom.

Outer shells

Electron shells beyond the first; the notes indicate they should hold eight electrons.

Polar covalent bond

A type of chemical bond mentioned in the notes; water is given as an example.

Water

An example used in the notes to illustrate a polar covalent bond.

Bond

A connection between atoms; the notes mention that there are three types of bonds.