Quantum Numbers and Electron Structure Quiz

Electromagnetic Radiation

• Frequency of electromagnetic radiation with a wavelength of 3.33 x 10^-8 m can be calculated using the formula: frequency = speed of light / wavelength
• Speed of electromagnetic radiation with a frequency of 1.33 x 10^17 Hz and a wavelength of 2.25 nm is 3.0 x 10^8 m/s (speed of light)

Photon Energy

• Energy of a photon of red light with a frequency of 4.48 x 10^14 Hz can be calculated using the formula: energy = Planck's constant x frequency

History of Electromagnetic Waves

• Visible light was proposed to consist of electromagnetic waves by James Clerk Maxwell

Quantum Mechanical Model

• Max Planck proposed in 1900 that energy is emitted and absorbed by atoms and molecules in discrete packets (quanta)
• Analysis of emitted light revealed that an element's chemical behavior is related to its atomic structure
• Atoms are described in terms of their structure as having a small, dense positively charged nucleus surrounded by clouds of electrons
• Main energy levels, sublevels, and orbitals are related to the electronic structure of atoms, which determines their chemical behavior

Atomic Structure

• Valence electrons are responsible for chemical bonding and are located in the outermost energy level of an atom
• The primary force responsible for holding two atoms together is electrostatic attraction

Chemical Bonding

• Cations and anions form during ionic bonding through the transfer of valence electrons
• Valence electrons are located in the outermost energy level of an atom and are responsible for chemical bonding
• In Group 6A of the periodic table, the electronic configuration of an element is ns^2 np^4

Compounds and Ions

• The compound formed by the combination of aluminum and oxygen is aluminum oxide
• The polyatomic ion with the formula SO3^2- is named sulfite
• Metallic bonding arises from the electrostatic attractive force between conduction electrons
• The systematic name for the compound with the metal cation Fe3+ and the chromate anion is iron(III) chromate
• Polyatomic ions in which a central atom is surrounded by one to four oxygen atoms are referred to as oxoanions

Test your knowledge on the Quantum Mechanical Model of the Atom, electronic structure of atoms, and the use of quantum numbers to describe electrons. This quiz also includes exercises on quantum numbers.