Calculate the wavelength of light emitted when the following transition occurs in a hydrogen atom
n=4 to n=2
Round to 3 sig figs and include units!!
It takes 7.21x10-19 J of energy to remove an electron from an iron atom. What is the maximum wavelength of light that can do this?
Which of the follwoing sets of quantum numbers are not alowed?
Arrange the following in increasing first ionization energy with 1. being the lowest and 3. being the highest: Ba, Si, F
Ba
Si
F
The successive ionization energies for an unknown element are
I1 = 896 kJ/mol
I2 = 1752 kJ/mol
I3 = 14,807 kJ/mol
I4 = 17,948 kJ/mol
To which family in the periodic table does the unknown element most likely belong?

Write the corresponding electron configuration of the element depicted in the PES.
The element depicted by this PES is
Why does the first peak have a much higher binding energy than the last two?