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His 1913 atomic model introduced quantized electron energy levels, famously explaining hydrogen’s emission spectrum.
Who is Niels Bohr?
The electron configuration of oxygen.
What is 1s22s22p4?
This type of bond forms when electrons are transferred from a metal to a nonmetal.
What is an ionic bond?
The predicted bond angle in H2O.
What is less than 109.5 degrees?
What is electronegativity?
The number of valid resonance structures which can be drawn for the carbonate ion (CO32-).
What is three?
The hybridization of phosphorous in PCl3.
What is sp3 hybridization?
This type of electromagnetic radiation has the longest wavelengths.
Radio waves
He explained the photoelectric effect by proposing that light comes in quantized packets called “photons,” earning the 1921 Nobel Prize in Physics.
Who is Albert Einstein?
The electron configuration of the chloride anion.
1s22s22p63s23p6
The bond order in the cyanide ion (CN-).
What is 3?
The molecular geometry of phosphorous trichloride (PCl3).
What is trigonal pyramidal?
The least electronegative element.
What is francium?
The formal charge of carbon in the cyanide ion (CN-).
What is -1?
The hybridization of carbon in formaldehyde, CH2O?
What is sp2 hybridization?
This type of electromagnetic radiation has the highest frequencies.
Gamma rays
His uncertainty principle states that you cannot simultaneously know both the exact position and momentum of an electron.
Who is Werner Heisenberg?
The noble gas electron configuration of antimony.
What is [Kr]5s24d105p3?
The number of double bonds present in the best Lewis structure of phosphorous oxychloride (POCl3).
What is one double bond.
The electron geometry of chlorine trifluoride (ClF3).
What is trigonal bipyramidal?
This term describes a bond where electrons are shared unequally—usually due to a difference in electronegativity.
What is a polar covalent bond?
The nitrogen-oxygen bond order in the nitrate ion.
The number of pi bonds in ethylene (C2H4).
What is one?
The wavelength of the microwaves used by wireless internet routers, which have a frequency of 5 gigahertz (5 x 109 Hz), in cm.
6 cm
This Austrian physicist developed the wave equation that describes electrons as probability waves instead of particles.
Who is Erwin Schrödinger?
The noble gas electron configuration of seaborgium.
What is [Rn]7s25f146d4?
The number of double bonds in the best Lewis structure of xenon tetroxide (XeO4).
What is 4 double bonds?
The ideal bond angle in XeF4.
What is 90 degrees?
Molecules which contain polar bonds can be non-polar overall because of this?
What is molecular geometry?
The formal charge of phosphorous in the best resonance structure of the phosphate anion (PO43-).
What is zero?
This type of molecular orbital features a node, or region of zero electron density, between the nuclei.
What is antibonding?
The energy of a photon of UV-B light with a wavelength of 295 nm, in joules.
What is 6.73 x 10-19 joules?
This physicist realized that electrons can behave like waves, leading to the idea of electron diffraction.
Who is Louis de Broglie?
The condensed (i.e. noble gas) electron configuration of chromium.
[Ar]3d54s1
The number of lone pairs on the central atom in the Lewis structure of iodine trifluoride (IF3).
What is 2 lone pairs?
The predicted bond angle in bromine trifluoride (BrF3).
What is less than 90 degrees?
This vector quantity points from the positive end of a bond toward the negative end, and can be summed to determine molecular polarity.
The formal charge of oxygen in the best resonance structure of the isocyanate ion (OCN-).
What is -1?
The number of antibonding electrons in the molecular orbital diagram of diatomic fluorine (F2).
What is six?