2.2.1 - Electron Structure

• What is an atomic orbital?

  A region of space that holds electrons
• How many electrons can an atomic orbital hold?

  Up to 2 electrons
• What is the significance of electron spins in an atomic orbital?

  Electrons must have opposite spins
• How many orbitals are in the s subshell?

  1 orbital
• How many orbitals are in the p subshell?

  3 orbitals
• How many orbitals are in the d subshell?

  5 orbitals
• In what order are orbitals filled?

  In order of increasing energy
• What is the rule for occupying orbitals of the same energy?

  They are occupied singly before pairing
• What is electronic configuration?

  The arrangement of electrons in orbitals
• What does the energy level represent?

  The shell that an electron is in
• What is a shell in atomic structure?

  The orbit that an orbital is in
• What is the first shell in an atom?

  The shell closest to the nucleus
• What is the valence shell?

  The outermost shell occupied by electrons
• What is a subshell in atomic structure?

  A subdivision of electronic shells
• What are the types of subshells?

  s, p, d, and f