electron configuration

if an electron is to go from the excited state to the ground state it must

elements in a group or column can be expected to have the same

which shows the correct order to fill electrons

What element ends in 5s¹

according the quantum theory can we know the exact location and speed of an electron 

which group contains only representative elements

 you have two electrons in an orbital and one has a clockwise spin what is the spin of other e

in the electron configuration of Y what is the notation for the three highest energy electrons 

What is the difference between a 3 s and a 4 s orbital 

If the highest occupied energy level is 5p²  What group is this element from 

the energy required to remove an electron from an atom is

maximum number of electrons in 3rd energy level

do energy levels have only certain frequencies and therefore only certain amounts of energy 

 fluorine is 1s²2s²2p⁵  what is total number of electrons in highest energy level  valence elec

can an electron reside between energy levels

which of the following elements has the lowest first ionization energy 

what is the shape of an s orbital 

which element listed below has the lowest electronegativity 

how many electrons can an f sublevel hold

what is the reason that atomic radius increase with atomic number in a group

is the ion of oxygen bigger or smaller than the atom from which it came

energy of a photon is related to its

what is the charge of a cation and what elements form cation 

the distance between two successive troughs

what block contains the halogens

what element ends in 5s² 4d³

what sublevels are in second energy level