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ch 4 chem
Question | Answer |
---|---|
for electromagnetic radiation, c equals what? | frequency times wavelength |
what is frequency measured in? | hertz |
what does electromagnetic radiation do as ittravels through space? | it acts like a wave |
what is a quantum of electromagnetic energy called? | photon |
what has to happen for an electron to change from ground state to excited state? | energy must be absorbed |
where is the one place an electron cannot be in an atom? | the nucleus |
where will you find an electron? | the electron cloud |
how many quantom numbers describe the energy state of an electron? | 4 |
what are the main energy of an atom indicated by? | principle quantom numbers |