Chem Electron Arrangement

Which atomic model was the first to suggest orbitals?

• Bohr
• Rutherford
• Thomson
• Quantum

Which atomic model was the first to suggest energy levels?

• Bohr
• Rutherford
• Thomson
• Quantum

A line emission spectrum is produced when an electron moves from one energy level

• to a higher energy level.
• to a lower energy level.
• into the nucleus.
• to another position in the same sublevel.

The change of an atom from an excited state to the ground state always requires

• absorption of energy.
• emission of electromagnetic radiation.
• release of visible light.
• an increase in electron energy.

For an electron in an atom to change from the ground state to an excited state,

• energy must be released.
• energy must be absorbed.
• radiation must be emitted.
• the electron must make a transition from a higher to a lower energy level.

A three-dimensional region around a nucleus where an electron is likely found is called a(n)

• spectral line.
• electron path.
• orbital.
• orbit.

An electron in the fourth energy level has more ____ than an electron in the second energy level..

• spin
• particle nature
• energy
• wave nature

The major difference between a 1s orbital and a 2s orbital is that

• the 2s orbital can hold more electrons.
• the 2s orbital has a slightly different shape.
• the 2s orbital is at a higher energy level.
• the 1s orbital can have only one electron.

An orbital that can never exist according to the quantum description of the atom is

• 3d.
• 8s.
• 6d.
• 3f.

The letter designations for the first four sublevels with the maximum number of electrons that can be accommodated in each sublevel are correctly listed as

• s:2, p:4, d:6, and f:8.
• s:1, p:3, d:5, and f:7.
• s:2, p:6, d:10, and f:14.
• s:1, p:2, d:3, and f:4.