Electron Configuration
Atomic Structure
Vocabulary
Models of Atoms
Emission Spectra
100
The electron configuration of Helium, which has the atomic number "2"
What is 1s2? or, What is "Two electrons in the first shell"?
100
The center of the atom, where you find protons and neutrons.
What is the nucleus?
100
These electrons are located in the outermost shell of an atom's electron energy levels. They love to share!
What are Valence Electrons?
100
The solid sphere model doesn't show these two things as separate, unlike the nuclear model.
What are the nucleus and electrons?
100
The more energy a photon has, the ______ its wavelength is.
What is "lower" or "shorter"?
200
The element with electron configuration 1s22s22p5
What is Fluorine (F)?
200
The positively-charged part of a nucleus.
What is a Proton?
200
The name for a particle of light, emitted when electrons lower their energy level
What is a Photon?
200
This model, also called the Bohr model, shows electron energies as "orbits".
What is the Planetary model?
200
Light can be dangerous! This kind of light can give us sunburn, skin cancer, and a way to clean our safety glasses here in class.
What is "ultraviolet" or UV?
300
The electron configuration of Sodium, which has the atomic number "11"
What is 1s22s22p63s1?
300
The negatively-charged particles surrounding the nucleus.
What are Electrons?
300
The process by which atoms release photons; happens when electrons fall down from high energy to low energy.
What is emission?
300
This model is the most classic visual of an atom, but doesn't show energy levels of electrons. You can see it represented here, in the Isotopes logo!
What is the Nuclear Model?
300
This tool, which we used to see emission lines, is just a tube with some diffraction lenses in it.
What is a spectroscope/spectroscope tube?
400
The element with electron configuration 1s22s22p63s23p3
What is Phosphorus (P)?
400
The number of neutrons that Oxygen-18 must have
What is 10?
400
This is how we find the atomic mass, or the total number of particles in the nucleus
What is "add protons and neutrons together"?
400
This model shows electrons swimming around in the atom. Still doesn't show a nucleus, though!
What is "Plum pudding"?
400
This spectrum shows four lines in what kind of light? Hint: it's the kind we can see!
What are "Visible" or "Optical" wavelengths?
500
The electron configuration of Iron, which has the atomic number "26"
What is 1s22s22p63s23p64s23d6?
500
When two atoms have the same number of protons, but different numbers of neutrons, the two atoms are _________. Play ball!
What are Isotopes?
500
This is the term for a bonded set of atoms. Oh no? More like O2!
What is "Molecule"?
500
The quantum model of atoms shows electrons not as orbits, but as these, which could be a sign of rain if you see them in the sky.
What are clouds?
500
Which two elements make up our "unknown mixture"?
What is "boron" and "carbon"?