A
A ground state atom of which element has one electron in its fourth and outermost main energy level?
B, Ge, Na, or K?
K (Potassium)
What orbital is filled when Iodine gains an electron to become a negative ion? (what is the final orbital being filled. Write it in orbital notation)
3s, 4d, 5s, 5p, 2p, or 3d?
5p
Green light has a wavelength of 510 nm. What is the wavelength in m?
5.1x10^-7m
5.1x10^11m
5.1m
5.1x10^9m
5.1x10^-7m
E=hf f=E/h E=energy f=frequency h= Planck's constant 6.626 x 10^-34 J/s
A photon with energy of 7.50 x 10^-19 has what frequency?
f= 7.50 x 10^-19/h
4.97x10^-52hz, 1.13x10^15hz, 1.13x10^-53hz, or 2.50x10^-27hz
1.13x10^-53hz
What does each band in an emission spectrum represent? What is happening within the atom?
Each band represents a single discrete energy transition. This is happening because energy (heat or light) is being absorbed by the atom, "exciting" the electrons.
Which scenario will produce light:
An electron moving into the nucleus
An electron is removed from the atom
An electron moving to an excited state
An electron moving to a ground state
An electron moving to a ground state
The noble gas notation for the electron configuration for Bromine is [Ar] 4s^23d^104p^5. How many unpaired electrons are there in an atom of Br in the ground state?
1 (one)
Bohr is famous for examining the spectrum of Hydrogen gas. Even though hydrogen has only one electron, why are multiple bands visible?
While a hydrogen atom has only one atom electron, it has an infinite number of potential energy levels that electron can occupy.
Each period in the periodic table corresponds to:
number of valence electrons
principal energy level "n"
energy sublevel "e"
the spin quantum number
principal energy level "n"
According to Bohr's atomic model, which of the places can an electron never be found?
In the nucleus and in between the energy levels.
According to Aufbau, which of the following sublevels is lowest in energy?
3d
4p
4s
5s
4s
Write the orbital notation, electron configuration, and noble gas configuration for Selenium (Se). Draw the orbital notation for the Ion Selenium is most likely to form.
(yesterday worksheet)
What can you conclude from the orbital diagram:
The Aufbau principle has been violated.